NOVAMETRIX MEDICAL SYSTEMS INC
10-K, 1997-07-25
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 ---------------

                                    FORM 10-K

                        FOR ANNUAL AND TRANSITION REPORTS
                     PURSUANT TO SECTIONS 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

(Mark One)
/X/   ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE
      SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED, EFFECTIVE
      OCTOBER 7, 1996].

For the fiscal year ended April 27, 1997
                                   OR

/ /   TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934 [NO FEE REQUIRED].

For the transition period from __________ to _____________

                         Commission file number 20-8969

                         NOVAMETRIX MEDICAL SYSTEMS INC.
             (Exact Name of Registrant as Specified in Its Charter)

<TABLE>
<S>                                                <C>
          Delaware                                    06-0977422
(State or Other Jurisdiction of                    (I.R.S. Employer
Incorporation or Organization)                      Identification No.)

5 Technology Drive
Wallingford, Connecticut                                  06492
(Address of Principal Executive Offices)                 (Zip Code)
</TABLE>

(Registrant's telephone number, including area code) (203) 265-7701

Securities registered under Section 12(b) of the Exchange Act:

<TABLE>
<CAPTION>
                                          Name of each exchange
      Title of each class                  on which registered
      -------------------                  -------------------
<S>                                       <C>
            None                                None
</TABLE>

Securities registered under Section 12(g) of the Exchange Act:

<TABLE>
<CAPTION>
Common Stock,
$.01 par value          Class A Warrants        Class B Warrants
- --------------          ----------------        ----------------
<S>                     <C>                     <C>
(Title of class)        (Title of class)        (Title of class)
</TABLE>


                               Page 1 of 36 pages
                           Exhibit Index at page E-1.
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                                                                               2




      Indicate by check mark whether the registrant: (1) filed all reports
required to be filed by Section 13 or 15(d) of the Exchange Act during the
preceding 12 months (or for such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days. Yes X No___


      Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. / /

      State the aggregate market value of the voting and non-voting common stock
held by non-affiliates of the registrant. The aggregate market value shall be
computed by reference to the price at which the common equity was sold, or the
average bid and asked prices of such common equity, as of a specified date
within 60 days prior to the date of filing.

      Aggregate market value as of July 1, 1997 .............$42,050,150

      Indicate the number of shares outstanding of each of the registrant's
classes of common stock, as of the latest practicable date.

      Common Stock, $.01 par value, as of July 1, 1997 ....... 7,246,652 shares

                       DOCUMENTS INCORPORATED BY REFERENCE

      List hereunder the documents incorporated by reference herein and the Part
of the Form 10-K into which the document is incorporated:

      Proxy Statement to be dated on or about August 22, 1997 -- Part III
<PAGE>   3
                                                                               3



ITEM 1.     BUSINESS.

GENERAL

      Organized in 1978, Novametrix Medical Systems Inc. (the "Company") is
engaged in the business of designing, developing, manufacturing and marketing
monitors and sensors which provide continuous and non-invasive measurements of a
patient's blood gas levels (oxygen and carbon dioxide) and respiratory mechanics
(lung pressure, flow and volume). The Company's current product line consists of
the following:

      -     Capnographs -- monitors which measure the level of exhaled carbon
            dioxide.

      -     Pulse Oximeters -- monitors which measure arterial blood oxygen
            saturation levels and pulse rates.

      -     Transcutaneous Blood Gas Monitors -- monitors which measure oxygen
            and carbon dioxide levels through the skin.

      -     Respiratory Mechanics Monitors -- monitors which measure pressure,
            flow and volume in a patient's airway and lungs.

      -     Reusable and disposable sensors and adapters, related accessories
            and replacement parts.

      The Company also produces several monitors which combine two or more of
the above parameters in a single device.

BLOOD GAS MONITORS

      Levels of oxygen and carbon dioxide in the blood are important indicators
of the condition of critically ill or injured patients. These levels are
particularly important to doctors, nurses, therapists and other clinicians
during anesthesia in the operating room, the assessment of a patient in the
emergency room, the monitoring of a patient in the intensive care unit and
recovery room and throughout respiratory care applications. Healthy people have
a normal range of oxygen and carbon dioxide levels in their blood, lungs and
other tissue. Also, depending on a person's size and age, there is a range of
normal airway and lung pressure, flow and volume levels. By continuously
monitoring these ranges, a change in a patient's status can be detected at an
early stage and modified before serious deterioration in a patient's condition
occurs. In addition, if a patient's blood gas levels or respiratory mechanics
are outside their normal ranges, continuous monitoring provides healthcare
professionals with important information concerning the progress of the medical
treatment undertaken to restore them to within normal ranges.
<PAGE>   4
                                                                               4


      Previously, the only methods of determining the body's oxygen and carbon
dioxide levels involved invasive techniques of withdrawing blood samples from a
patient's artery and waiting for laboratory analysis of the samples. The
Company's products offer healthcare providers the alternative of non-invasive,
continuous and immediate measurement of oxygen and carbon dioxide. The Company's
blood gas monitoring products utilize three different technologies, each of
which is suitable for different applications.

      CAPNOGRAPH MONITORS. The Company's capnographs (or end-tidal carbon
dioxide monitors) provide a continuous, non-invasive measurement and display of
the amount of carbon dioxide in each breath exhaled by the patient. Clinically,
end-tidal carbon dioxide levels have been correlated to a patient's arterial
blood carbon dioxide levels. Measurement of these levels provides a simple,
non-invasive method of estimating the carbon dioxide levels of the patient.
Applications for capnographs include (i) intubation verification - the
verification of the introduction of an airway tube into the trachea (air tube)
rather than the esophagus (food tube) and the verification of an open and
unobstructed airway; (ii) extubation detection - the disclosure of the
accidental dislodging from the trachea of an airway tube; (iii) ventilation
management through the disclosure of ventilator malfunctions and the proper
adjustment of mechanical ventilation to match a patient's condition and needs;
and (iv) verification of the effectiveness of cardio-pulmonary resuscitation
(CPR).

      The Company's capnographs utilize a form of infrared spectrometry (a
method of analyzing gas content by measuring the amount of infrared energy
absorbed) developed by the Company to measure levels of expired carbon dioxide
throughout the patient's respiratory cycle. These monitors provide both a
graphical and digital display of carbon dioxide levels and respiratory rate. The
reliability and accuracy of capnography have made its use a rapid indicator of
proper and continuous intubation, obstructions in the airway and pulmonary
efficiency in eliminating carbon dioxide. In addition, end-tidal carbon dioxide
and respiratory rate measurements facilitate proper and cost efficient
ventilator use. In recognition of its accurate measurement of clinically
significant facts, as well as the added degree of safety that it affords
patients, capnography has been recommended for use in the operating room by the
American Society of Anesthesiologists and in the intensive care unit by the
Society of Critical Care Medicine.

      The Company recently introduced the TIDAL WAVE(TM) to its line of
mainstream capnographs. The TIDAL WAVE (measuring 8" high, 3" wide and 1 1/2"
deep and battery operated) is the first hand-held mainstream CO(2) monitor with
a graphical waveform on the market. Applications for this monitor include areas
outside the traditional bedside setting such as emergency medical services where
a smaller, portable monitor is required. The Company also has two bedside
capnographs: the CAPNOGARD(R), and the CO(2)SMO(R), a combined capnograph and
pulse oximeter. These "mainstream" (on the airway) capnographs are designed to
take measurements at the patient's airway through infrared measurements as
compared to "sidestream"
<PAGE>   5
                                                                               5



measurements of exhaled breath which involve the drawing of samples through
tubes connected to bedside monitors and which are susceptible to moisture and
other secretion contaminants. All models utilize a durable and solid-state
sensor developed by the Company. The TIDAL WAVE has a list sales price of
approximately $3,500 depending on configuration, the CAPNOGARD has a list sales
price of approximately $7,500 and the CO(2)SMO has a list sales price of
approximately $9,500.

      PULSE OXIMETERS. The Company's pulse oximeters provide a continuous and
non-invasive measurement and display of pulse rate and arterial blood oxygen
saturation through the detection and measurement of infrared light absorbed by
hemoglobin in the blood. Reusable finger and multi-position sensors
(Y-Sensor(TM)) are available for adult, pediatric and neonatal applications and
eliminate the use of costly disposable sensors. Pulse oximeters have been
clinically demonstrated as safe, accurate and cost-effective for the
determination and trending of levels of blood oxygen saturation and pulse rates.
Applications for these monitors are widespread since the level of oxygen in a
patient's blood can be as important a vital sign of a patient's condition as the
patient's temperature, blood pressure, respiratory rate and electrocardiogram.
Pulse oximetry is used in many departments of the hospital, including the
operating room by anesthesiologists, emergency rooms and intensive care units by
nurses and respiratory therapists and neonatal intensive care units by
neonatologists. Additional applications include inter- and intra-hospital
transport situations and clinical applications in surgical centers, doctors'
offices and clinics during outpatient procedures.

      The Company has a family of pulse oximeters designed to meet the
individual needs of clinicians in a variety of settings. Each oximeter utilizes
the Company's reusable Superbright(TM) sensors, which provide safe and accurate
results on all types of patients, including neonates (an infant less than 28
days old) and poorly perfused patients (patients with insufficient blood flow).
The Company's full-featured oximeter, the OXYPLETH(R) provides high visibility
of the plethysmographic waveform (a graphic display of arterial pulse, also
known as a plethysmogram) through the use of digital technology combined with
advanced software developed by the Company. The Model 515B and Model 515C (with
plethysmogram) pulse oximeters utilize the same basic technology and software as
our more expensive model to provide the same oxygen saturation and pulse rate
information but with fewer available added features.

      This family of pulse oximeters also includes a battery operated hand-held
pulse oximeter, the SPO(2)T(Check)(TM). Measuring approximately 6" high, 4" wide
and 1 1/2" deep and weighing less than 1 pound, this monitor's lightweight
design and portability permits wide applications such as use in emergency
transport situations, doctors' offices, clinics during outpatient procedures and
performance of spot checks on patients in all areas of the hospital.
<PAGE>   6
                                                                               6



      The OXYPLETH has a list sales price of approximately $3,000. The Model
515B, Model 515C and SPO(2)T(Check)(TM) have list sales prices of approximately
$2,000, $2,200 and $1,000, respectively.

      TRANSCUTANEOUS BLOOD GAS MONITORS. The Company's transcutaneous (through
the skin) blood gas monitor provides continuous and non-invasive measurements of
oxygen and carbon dioxide levels in the skin tissue of patients. This monitor
utilizes dual parameter sensors attached to the patient's skin surface to
measure the amount of oxygen and carbon dioxide diffusing through the skin.
Based upon the magnitude of the diffusion of the blood gas molecules, the
monitor converts the sensor readings into a value corresponding to the oxygen or
carbon dioxide at the patient's skin surface and displays the information on the
monitor. Premature and other critically ill newborn infants are the primary
patients who benefit from the use of transcutaneous monitoring. In view of their
limited blood supply, frequent invasive blood sampling has been recognized as
traumatic and unsatisfactory for these patients. The Company intends to continue
to develop and enhance its transcutaneous blood gas monitor for neonatal and
adult use in intensive care and vascular medicine applications.

      During fiscal 1997, the Company introduced the TCO(2)M(R) Model 860, a 
new transcutaneous monitor. This monitor is a lightweight, portable unit with a
simple menu system which guides the user through set-up and operation. The
TCO(2)M is the first monitor of its kind to provide on-screen graphical trending
information allowing patient data to be reviewed directly at the bedside.
TCO(2)M accepts combination or single oxygen and carbon dioxide sensors for
optimum versatility and has a list sales price of approximately $6,500 to $8,500
depending on configuration.

RESPIRATORY MECHANICS MONITORS

      The Company's newest respiratory mechanics monitor, the CO(2)SMO Plus(TM),
is the first monitor to combine respiratory mechanics with capnography and pulse
oximetry in one small package for continuous bedside monitoring of mechanically
ventilated patients. The CO(2)SMO Plus provides continuous, non-invasive
measurements of flow, pressure and volume in a patient's airway, as well as
measurements of other pulmonary mechanics, carbon dioxide elimination and
arterial oxygenation. Applications for this monitor include the clinical
management of proper pressure and flow of airway gases being delivered to a
mechanically ventilated patient's lungs, allowing therapists to wean a patient
from costly mechanical ventilation to spontaneous breathing at the clinically
appropriate time. The addition of the first combined mainstream CO(2)
adapter/flow sensor provides continuous measurements of pulmonary deadspace, the
portion of the patient's lungs that does not participate in gas exchange, and
CO(2) production, the volume of CO(2) exhaled by the patient, two parameters
never before available continuously at the bedside. The use of these parameters,
and the impact of each parameter on patient ventilation, provides the clinician
with important feedback to optimize the patient's care. Thus the use of
<PAGE>   7
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the CO(2)SMO Plus enhances patient care by minimizing the trauma, length of stay
and costs associated with mechanical ventilation.

      Another new addition to the respiratory mechanics product line is the
Vent(Check)(TM) hand-held respiratory mechanics monitor. Vent(Check) measures
flow, pressure and volume at the airway and graphically displays flow and
pressure waveforms and loops, breath by breath. Measuring 8" high, 3" wide and 1
1/2" deep and battery operated, this monitor is designed for spot checking
mechanically ventilated patients and, when used during transport, provides an
additional level of safety for the patient.

      Respiratory therapy and critical care departments with patients requiring
mechanical ventilation represent the primary users of the CO(2)SMO Plus and
Vent(Check).

      The Company's VenTrak(R) Model 1550 respiratory mechanics monitor also
provides pressure, flow and volume measurements in a patient's airway, both
continuously and non-invasively. In addition, the VenTrak can be combined with
the Company's capnography technology for enhanced monitoring of mechanical
ventilation effectiveness and patient respiratory capabilities.

      The CO(2)SMO Plus has a sales list price of approximately $10,995, the
Vent(Check) has a sales list price of approximately $3,250, and the VenTrak has
a sales list price of approximately $9,000 to $13,000 depending on its
configuration.

      The Company also maintains the exclusive rights to patented technology for
the commercial manufacture and marketing of a family of disposable airway
sensors and a combined CO(2)/flow adapter.

SALES, MARKETING AND CUSTOMERS

      The Company markets its products domestically and internationally directly
through salespersons and outside distributors to its customers, most of which
are hospitals. All of the Company's blood gas and respiratory mechanics products
are marketed primarily to hospitals for use in operating rooms, emergency rooms,
intensive care units, respiratory therapy departments, transport situations and
in other departments where critically ill or injured patients require
monitoring. The Company expects to further increase its marketing efforts to
physician groups and other healthcare facilities such as nursing homes, surgical
centers and outpatient clinics through the use of manufacturers' representatives
experienced in these marketplaces.

      The Company also markets its products directly to original equipment
manufacturers (OEMs) which incorporate certain of the Company's products and
technologies in the manufacture of their own multi-parameter systems,
ventilators and other non-competing products. Generally, the Company sells its
products to OEM customers pursuant to long-term contracts which, in certain
cases, provide for the purchase of minimum quantities of products at specified
prices. The Company
<PAGE>   8
                                                                               8



assembles the products to be sold to OEM customers and, generally, also agrees
to provide maintenance and replacement parts. The Company continues to seek new
agreements with other OEM customers and additional agreements for other products
with its current customers. However, there can be no assurance that the Company
will be successful in obtaining other long-term OEM contracts.

      The Company employs a 19-person direct United States sales force and also
utilizes six outside distributors in the United States to sell its products.
Typically, these distributors sell other medical instruments and products, but
do not sell products which compete directly with those offered by the Company.
In addition, the Company utilizes manufacturer's representatives to support
sales of its products in the non-hospital markets.

      Internationally, the Company currently employs six sales and marketing
managers and has approximately 85 outside international distributors. The
Company markets its products in over 75 countries worldwide. The Company's
international net sales of products and services constituted 41%, 45% and 39% of
total net sales during Fiscal 1997, 1996 and 1995, respectively. The Company is
engaged in continuing efforts to improve and expand the international
distribution of its products and expects international sales to continue to
constitute a significant portion of total net sales.

      Many of the countries into which the Company sells its products require
governmental approval for the sale of the Company's medical instruments. In most
countries which require approval, the approval process is shorter than that in
the United States and, generally, the Company shares the costs associated with
the approval process with its international distributors. The Company believes
it has all of the necessary approvals to sell the products which it currently
distributes internationally.

      The Company's international sales are denominated in United States
dollars, which may be affected by exchange rate fluctuations. The Company
believes that prior fluctuations in the strength of the United States dollar
have had a minimal impact on its international sales.

      No customer accounted for more than 10% of the Company's net sales in
Fiscal 1997, 1996 or 1995.

      Advertising of the Company's products consists primarily of displays at
medical meetings and trade shows. The Company also advertises in trade journals
and periodicals and cooperates in the publication of technical papers written by
medical authorities in areas relating to the Company's products.
<PAGE>   9
                                                                               9



RESEARCH AND DEVELOPMENT

      The Company's research and development activities are devoted to the
design and development of new monitor and sensor technologies and to the
development and enhancement of its existing products. The Company anticipates
offering new products in the future, however, there can be no assurance that the
Company will introduce new products in successive fiscal years. With the advent
of managed care and continuing healthcare cost containment efforts, these
research and development activities are focused on providing technology and
related products which measure and record medically necessary information in a
safe and cost-effective manner.

      The Company's research and development activities presently are, and
during the foreseeable future are expected to be, devoted primarily to the
development and enhancement of the Company's existing products and technologies
and to the design and development of new products. For Fiscal 1997, 1996 and
1995, the Company incurred research and development costs aggregating
approximately $8,437,000, of which approximately $3,304,000 was attributable to
Fiscal 1997, $2,714,000 to Fiscal 1996 and $2,419,000 to Fiscal 1995. All of the
Company's research and development activities are sponsored by the Company.

      The Company's Cascadia Technology Division, located in Redmond,
Washington, is principally engaged in research and development. The research and
development portion of expenses related to this division are included in the
amounts stated in the preceding paragraph.

PRODUCTION AND SERVICE

      Substantially all of the components in the Company's products, including
those designed to the Company's specifications, are manufactured by others and
then assembled by the Company. The Company's assembly operations require a
variety of electronic and mechanical components and supplies, as well as
specialized equipment which the Company owns or leases.

      The Company does not have any long-term contracts with any of its
suppliers and believes that the needed components and supplies are available
from alternate sources. The Company has not experienced any interruption of
production or deliveries of components, supplies or equipment. However, there
can be no assurance that the Company will continue to receive timely service or
that the Company would be able to find readily a substitute manufacturer if one
were needed on short notice. Interruption of the Company's sources of supply or
quality problems with the supplied components could have a material adverse
effect on the Company's business and financial position.

      The Company provides maintenance service for its products through service
technicians who are employees of the Company and through independent service
<PAGE>   10
                                                                              10



representatives. The Company's products utilize modular components which have
been designed for maximum maintenance accessibility and ease of removal for
repair or replacement. The Company warrants its products against defects in
material and workmanship, including parts and labor, for one year or more,
except for certain non-capital items which the Company warrants for shorter
periods. The Company also offers extended warranty programs that may be
purchased by its customers. Historically, the Company's annual warranty expenses
have been immaterial.

BACKLOG

      Except for orders pursuant to long-term OEM agreements, the Company ships
its products on a current basis and substantially all of the product backlog at
April 27, 1997 is expected to be shipped within its normal operating cycle. As
such, the Company does not consider its backlog to be a meaningful indicator of
future sales.

PATENTS, TRADEMARKS AND PROPRIETARY RIGHTS

      The Company holds 26 U.S. patents and has pending applications for seven
additional U.S. patents. The Company's patents primarily cover its capnography
and flow technologies which the Company believes provide it with a competitive
advantage in the marketplace. Although the Company holds patents and has patents
pending related to certain of the Company's products, the Company does not
believe that its business as a whole is or will be materially dependent upon
patent protection of these products. However, the Company will continue to seek
patents as it deems advisable to protect its research and development and the
market for its products.

      Due to extensive patent coverage in the medical electronics instruments
industry and the rapid rate of issuance of new patents, certain components of
the Company's products may involve infringement of existing patents. The Company
believes that any risks presently being assumed with respect to any possible
patent infringement are reasonable business risks similar to those being assumed
by other companies in the industry.

      The Company is the owner of approximately 25 trademarks in the United
States including, Novametrix(R), CAPNOGARD(R), CAPNOSTAT(R), CO(2)SMO(R),
CO(2)SMO Plus(TM), Y-Sensor(TM), SPO(2)T(Check)(TM), OXYPLETH(R),
SuperBright(TM), VenTrak(R), PNEUMOGARD(R), TIDAL WAVE(TM), TCO2M(R) and
Vent(Check)(TM).

      The Company relies on trade secrets and proprietary know-how, which it
will seek to protect, in part, by confidentiality agreements with certain of its
employees, suppliers and customers. However, there can be no assurance that the
Company's confidentiality agreements, when in place, will not be breached or
that the Company would have adequate remedies for any breach. There can be no
assurance that the Company's trade secrets or proprietary know-how will not
otherwise become known or be independently discovered by competitors.
<PAGE>   11
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COMPETITION

      The electronic medical instrumentation industry is extremely competitive.
The Company considers the most significant competitive factors in its industry
to be product capability and performance (including reliability and ease of
use), price and terms of purchase, availability of prompt and effective
maintenance, and an ability to introduce new and improved products with
regularity. The Company believes that it competes effectively in each of these
areas.

      While continuous, non-invasive blood gas monitors are presently available
from several of the Company's competitors, the Company believes that its
continuous, non-invasive blood gas monitors provide advantages over currently
available competing products in terms of accuracy, reliability and versatility.
The Company believes its respiratory mechanics monitors also compare favorably
with competitive models in terms of accuracy of measurement and reliability of
service. Additionally, the Company feels that what it believes to be the
technological superiority in size, performance, reliability and durability of
its products provides it with a competitive advantage.

      The electronic medical instrumentation industry is characterized by rapid
technological changes and advances. Although the Company believes that its
products are technologically current, the development of new technologies or
refinements of existing ones could at any time make the Company's existing
products technologically or economically obsolete. Although the Company is not
aware of any pending technological developments that would be likely to
materially and adversely affect its business or financial position, there can be
no assurance that such developments will not occur at any time.

      Although all of the Company's competitors do not market all of the
products which the Company markets, the Company estimates that it competes with
at least ten competitors. Such competitors vary in size from those which are
smaller than the Company to divisions or subsidiaries of multinational
corporations. There can be no assurance that the Company will be able to compete
successfully with its competitors, some of which also have extensive production
facilities, well-established marketing and service organizations and recognized
reputations in the electronic medical instrumentation industry and also have far
greater financial resources than the Company has or will have in the foreseeable
future.

PRODUCT LIABILITY AND INSURANCE COVERAGE

      From time to time, the Company is subject to product liability claims,
suits and complaints incidental to its business. These claims, suits and
complaints are covered by insurance policies maintained by the Company, subject
to certain policy limits. In addition, certain of the Company's OEM agreements
require the Company to maintain certain levels of product liability insurance.
The Company currently
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maintains product liability insurance in the amount of $5,000,000 with a $50,000
per occurrence deductible up to an aggregate annual deductible of $250,000. The
Company is not aware of any pending claims, suits or complaints, the disposition
of which, in the opinion of management, would have a material adverse effect
upon the Company's financial position, results of operations or liquidity. The
Company, however, could be materially adversely affected by successful product
liability claims, and there can be no assurance that the Company will have
sufficient resources to satisfy any liability resulting from claims not covered
by existing insurance policies.

REGULATION

      The Company's products are subject to regulation in the United States and
in many of the foreign countries where the Company markets or seeks to market
its products.

      Certain of the Company's products are "devices" within the meaning of a
1976 amendment to the Federal Food, Drug and Cosmetics Act. Under the amendment,
a manufacturer must obtain approval by the United States Food and Drug
Administration ("FDA") of certain new devices before they can be marketed in the
United States. The approval process requires that the safety and efficacy of
such devices be demonstrated by the manufacturer to the FDA. Under certain
circumstances, the cost of obtaining such pre-marketing approval may be high and
the process lengthy, and no assurance can be given that approval will be
obtained. All of the products currently marketed domestically by the Company
requiring pre-marketing approval from the FDA have been so approved.

      In the future, certain other classes of medical devices may be required to
comply with industry-wide performance standards with respect to safety and
efficacy when these standards are promulgated by the FDA and internationally
recognized standards organizations (such as ISO and IEC). The FDA has not yet
developed industry-wide performance standards with respect to the safety and
effectiveness of those products manufactured by the Company which would be
subject to such standards. When and if these standards are adopted, the Company
will be required to submit data demonstrating compliance with the standards
(during which period the Company may be permitted to continue to market products
which have previously been approved by the FDA).

      There can be no assurance that the Company's products will comply with the
applicable industry-wide performance standards when and if adopted or that the
Company will receive the requisite approvals to market any of its future
products. Any failure to receive approvals or non-compliance with performance
standards would have a material adverse effect on the Company's business and
financial position.

      Underwriters' Laboratories, Inc. ("UL") has established safety standards
for patient-connective electrical apparatus. These standards, or their
equivalent, have
<PAGE>   13
                                                                              13



been adopted as purchase specifications by many hospitals. The Company has
obtained UL or equivalent approval with respect to certain of its products and
has applied or intends to apply for approval with respect to all its other
products to which these standards apply. In addition, state and municipal
testing agencies have imposed similar standards with which the Company's
products sold in particular areas may be required to comply. The Company does
not believe that compliance with these state and municipal standards will
involve significant expense.

      Various countries in which the Company markets its products have
regulatory agencies which perform functions comparable to those of the FDA.
Compliance to international standards is a growing factor in conducting business
in such markets. Novametrix has obtained ISO 9001 (Quality System) and EN46001
(Quality System specific to medical device manufacturing) certification. By
certification to these standards, the Company is permitted to place a "CE" mark
on its products which indicates product compliance as specifically required by
the European marketplace. To date, foreign regulations have not adversely
affected the Company's business, however, there can be no assurance that any
such regulations will not have a material adverse effect on the Company's
business and financial condition in the future.

      In the United States, the move toward managed care, and the growing
influence of managed care networks, hospital chains and hospital purchasing
groups, has had a major impact on the healthcare industry by accelerating the
trends toward shorter hospital stays, the use of outpatient facilities rather
than hospitalization and lowering annual cost increases for healthcare spending.
Additional cost saving changes could further impact hospitals, clinics and other
healthcare providers, which form the Company's customer base. These possible
changes could potentially reduce or further delay capital expenditures by these
providers, and could change the users and markets for the Company's products.
However, the acute care portion of a hospital (including the operating room and
intensive care unit) which is a significant market for the Company's products
should not be greatly affected by the trend toward the use of outpatient
facilities as such outpatient facilities generally care for patients who are not
critically ill. In addition, the trend toward managed competition may improve
sales of certain of the Company's non-disposable products which provide
substantial cost savings compared to similar disposable products sold by its
competitors, and may also improve sales of other Company products that improve
patient throughput and thereby result in shorter hospital stays.

      Although the trend toward managed competition may have a positive impact
on the Company's business by providing increased coverage for medical procedures
utilizing the Company's products, thereby increasing demand for the Company's
products, it is not possible at this time to predict what, if any, further
changes in healthcare will occur.
<PAGE>   14
                                                                              14



EMPLOYEES

      As of April 27, 1997, the Company had a total of 189 full-time employees,
consisting of 79 production personnel, 38 research and development personnel, 56
sales, marketing and service personnel and 16 administrative, managerial and
financial personnel. None of the Company's employees is covered by a collective
bargaining agreement. The Company considers its relationship with its employees
to be satisfactory.
<PAGE>   15
                                                                              15




ITEM 2.     PROPERTIES.

      The Company's main plant and executive offices are located at 5 Technology
Drive, Wallingford, Connecticut where it occupies approximately 53,000 square
feet of newly constructed office and manufacturing space under a twelve year
lease expiring in August 2008. The Company took occupancy of this facility in
August 1996 when it relocated from a smaller facility also located in
Wallingford, Connecticut. The lease provides for minimum annual lease payments
of $408,425, and contains one five-year renewal option and a purchase option
upon the commencement of the sixth year of the lease. The lease requires the
Company to pay for property taxes, insurance and repairs related to the
facility. The Company also rents approximately 6,000 square feet of warehouse
space at a nearby site in Wallingford, Connecticut at a cost of approximately
$2,500 per month.

      The Company also leases a building in Redmond, Washington under a
three-year lease expiring March 2000, renewable for an additional three years,
and comprising approximately 7,000 square feet of space utilized for research
and development and manufacturing support. The lease provides for minimum annual
lease payments of $61,700 plus taxes, insurance and other expenses.

      The Company believes that its facilities are well maintained, in good
operating condition and are adequate for its current needs.

ITEM 3.     LEGAL PROCEEDINGS.

      From time to time, the Company is a party to various legal proceedings
incidental to its business. The Company believes that none of these legal
proceedings will have a material adverse effect on the Company's consolidated
financial position, results of operations or liquidity.

      See also "Patents, Trademarks and Proprietary Rights" and "Products
Liability and Insurance Coverage" under "Item 1. Business."

ITEM 4.     SUBMISSION OF MATTERS TO A VOTE OF SECURITY
            HOLDERS.

      Not applicable.
<PAGE>   16
                                                                              16


                                     PART II

ITEM 5.     MARKET FOR THE REGISTRANT'S COMMON EQUITY AND
            RELATED STOCKHOLDER MATTERS.

      The Company's common stock, $.01 par value (the "Common Stock"), trades on
the Nasdaq Stock Market under the symbol "NMTX". The following table sets forth
the range of high and low sales prices per share for the Common Stock for Fiscal
1996 and 1997.

<TABLE>
<CAPTION>
                                            High Sale            Low Sale
                                            ---------            --------
<S>                                         <C>                  <C>
FISCAL 1996
 First Quarter...........................     $6 1/4             $5
 Second Quarter..........................      5 1/2              4 5/8
 Third Quarter...........................      8                  4 5/8
 Fourth Quarter..........................      7 3/4              5 1/2

FISCAL 1997
 First Quarter...........................     $7                 $4 7/8
 Second Quarter..........................      6 7/8              5
 Third Quarter...........................      6 1/4              5
 Fourth Quarter..........................      6 1/8              4 1/2
</TABLE>


      On July 18, 1997, the last sale price of the Common Stock as reported on
the Nasdaq Stock Market was $9 1/4.

      As of July 18, 1997, there were approximately 895 record holders of the
Common Stock. No dividends have been declared on the Common Stock since the
Company was organized. In addition, a loan agreement and a securities purchase
agreement to which the Company is a party and the Company's Certificate of
Designation of Series B Preferred Stock contain, among other provisions, various
covenants restricting the Company's ability to pay cash dividends to holders of
the Common Stock.
<PAGE>   17
                                                                              17


ITEM 6.     SELECTED FINANCIAL DATA.

      The following table sets forth selected financial and operating data of
the Company as of the end of each fiscal year and for each of the years in the
five-year period ended April 27, 1997.

<TABLE>
<CAPTION>
                             April 27,        April 28,          April 30,          May 1,            May 2,
FOR YEAR ENDED              1997(1)(2)       1996(1)(3)          1995(1)            1994               1993
                           -----------       -----------       -----------       -----------       -----------
<S>                        <C>               <C>               <C>               <C>               <C>
Net Sales                  $28,253,750       $25,260,180       $24,032,101       $20,788,496       $19,888,304
Net Income                   4,923,559         3,116,795         1,604,367           754,720           264,917
Net Income Per Share
  Primary                         0.60              0.39              0.21              0.11              0.04
  Fully Diluted                   0.59              0.39              0.21              0.11              0.04
Cash Dividends on
  Common Stock                      --                --                --                --                --

AT YEAR END
Total Assets                27,224,432        18,823,362        16,605,981        15,270,682        15,530,584
Long-Term Debt                 782,275         1,333,333         2,308,333         3,560,007         4,293,340
Redeemable Preferred
  Stock                      1,000,000         1,000,000         1,000,000         1,000,000         1,000,000
Stockholders' Equity        18,109,926        12,528,549         9,151,900         3,283,276         2,384,800
</TABLE>


- ---------------

(1) The above data should be read in conjunction with the consolidated financial
    statements and related notes set forth elsewhere herein and the discussion
    under "Item 7, Management's Discussion and Analysis of Financial Condition
    and Results of Operations." 

(2) Net income includes deferred tax benefits of $4,030,000 ($0.49 per share
    primary and $0.48 per share fully diluted) and non-recurring expenses of
    $2,149,910 ($0.26 per share) pertaining to an attempted merger and related
    proxy contest.

(3) Net income includes deferred tax benefits of $1,020,000, or $0.13 per share.
<PAGE>   18
                                                                              18



ITEM 7.     MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
            CONDITION AND RESULTS OF OPERATIONS.

RESULTS OF OPERATIONS

YEAR ENDED APRIL 27, 1997 COMPARED TO YEAR ENDED APRIL 28, 1996

      Net sales increased by approximately $3.0 million or 12% to approximately
$28.3 million for the fiscal year ended April 27, 1997 as compared to net sales
of approximately $25.3 million for the fiscal year ended April 28, 1996. Sales
to domestic, international and OEM (original equipment manufacturer) customers
all exhibited growth during Fiscal 1997 compared to the prior year. OEM sales
reflected substantially higher shipment levels to the Company's expanding OEM
customer base while product shipments to domestic and international markets
reflected more modest improvements over the previous year. In addition,
international orders received in Fiscal 1997 exceeded shipments by approximately
$550,000 creating a higher opening backlog for Fiscal 1998 than was available at
the start of the current fiscal year.

      Cost of sales as a percentage of net sales was 43.6% for Fiscal 1997
compared to 43.3% for Fiscal 1996. The favorable impact of product cost
improvements was essentially offset by sales mix and manufacturing start-up
costs associated with the new products introduced during the second half of the
fiscal year. The Company continues to target gross margin improvements through
added production efficiencies and product cost reductions.

      Research and Product Development ("R&D") expenses increased by 22% or
approximately $590,000 to $3,304,000 or 11.7% of net sales during the fiscal
year ended April 27, 1997 compared to R&D expenses of approximately $2,714,000
or 10.7% of sales during Fiscal 1996. Higher levels of salaries and related
fringe benefits, outside professional services and engineering project materials
were primarily responsible for the increase in R&D expenditures. R&D expenses
are expected to approximate 11.0% of net sales for Fiscal 1998 in conjunction
with the Company's product development objectives.

      Selling, General and Administrative ("S,G&A") expenses increased by
approximately $170,000 or 2% to $9,307,000 for Fiscal 1997 as compared to
$9,137,000 for Fiscal 1996. S,G&A expenses as a percentage of net sales improved
to 32.9% in Fiscal 1997 compared to 36.2% in the prior fiscal year. Decreased
selling expenses related primarily to changes in international distribution and
decreased field service expenses were offset by increases in marketing related
salaries and fringe benefits and travel and entertainment expenses. General and
Administrative expenses increased 6% primarily as a result of higher legal costs
and salary and related fringe benefits.
<PAGE>   19
                                                                              19



      Interest expense decreased by 13% or $37,000 to approximately $250,000 for
Fiscal 1997 as compared to approximately $287,000 for Fiscal 1996. Interest
expense associated with bank debt decreased by $54,000 as a result of lower
average debt levels during Fiscal 1997. Interest on capital lease obligations of
approximately $17,000 partially offset the decreased interest expense related to
bank debt.

      During the third quarter of Fiscal 1997, the Company incurred
approximately $2,150,000 of non-recurring expenses associated with the attempted
acquisition of Andros Holding Inc. and a related proxy contest.

      Income tax benefits increased to $4,000,000 for Fiscal 1997 compared to
$980,000 for Fiscal 1996. The increase resulted from a further reduction in
the net deferred tax asset valuation allowance of $3,864,000 due to the
continued improvement of the performance of the Company during Fiscal 1997.
Management believes it is more likely than not that these benefits will be
realized and will continue to evaluate whether further reductions in the
valuation allowance are warranted based on future operating performance and
other relevant factors. The Company will need to generate future taxable income
of approximately $14,500,000 to realize the deferred tax benefit recorded as of
April 27, 1997. Current income tax expense of $30,000 was recorded for Fiscal
1997 as compared to $40,000 for Fiscal 1996. For both periods, the income tax
expense pertaining to federal income taxes was calculated on an alternative
minimum tax basis after utilizing a portion of the Company's net operating loss
carryforwards.

YEAR ENDED APRIL 28, 1996 COMPARED TO YEAR ENDED APRIL 30, 1995

      Net sales increased by approximately $1.2 million or 5% to approximately
$25.3 million for the fiscal year ended April 28, 1996 as compared to net sales
of approximately $24.0 million for the fiscal year ended April 30, 1995.
International sales grew by 17% for Fiscal 1996 while sales to OEM (Original
Equipment Manufacturers) customers increased by 24% as the Company expanded its
OEM customer base. While product sales to our domestic hospital markets were
approximately 6% higher for Fiscal 1996, overall domestic sales decreased by
approximately 8% due to reduced sales of the Company's products in the
non-hospital markets.

      Cost of sales as a percentage of net sales improved to 43% for Fiscal 1996
from 44% for the prior fiscal year primarily due to favorable product mix.
Improved margins on international sales were partially offset by relatively
modest percentage increases in domestic hospital product cost of sales.

      R&D expenses increased by 12% or approximately $295,000 to $2,714,000
during Fiscal 1996 as compared to $2,419,000 for Fiscal 1995. The increase
resulted primarily from higher levels of salaries and related fringe benefits
and outside professional services incurred in conjunction with the Company's
expanded product
<PAGE>   20
                                                                              20



development efforts, which were partially offset by reductions in engineering
supplies and materials.

      S,G&A expenses increased by approximately 2% to $9,137,000 for Fiscal 1996
as compared to $8,978,000 for Fiscal 1995. Increased selling expenses associated
with higher levels of sales, particularly in the international area, were
partially offset by reduced marketing expenses. Increased salaries and related
fringe benefits in the marketing area were offset by decreased outside
professional services. General and Administrative expenses increased nearly 8%
during Fiscal 1996 primarily as a result of increased legal, external reporting
and recruitment expenses.

      Interest expense during Fiscal 1996 decreased by 23% as a result of lower
debt levels primarily associated with the Company's public offering consummated
during the first quarter of Fiscal 1995 (June 1994), and scheduled principal
payments.

      Current income tax expense of $40,000 for Fiscal 1996 was unchanged from
Fiscal 1995 and was calculated on an alternative minimum tax basis after
utilizing a portion of the Company's net operating loss carryforwards. In 1995
and prior years, the Company maintained a valuation allowance for the total
amount of net deferred tax assets related to tax credit carryforwards, net
operating loss carryforwards and temporary timing differences since management
believed that it was uncertain whether the tax benefits associated with these
assets would ultimately be realized. Because of the continued improvement in the
performance of the Company in 1996, management believed that it was more likely
than not that a portion of these benefits would have been realized and, in
accordance with the provisions of Statement of Financial Accounting Standards
No. 109, reduced the valuation allowance and recognized a benefit of $1,020,000
in the 1996 financial statements.

LIQUIDITY AND SOURCES OF CAPITAL

      The Company requires adequate liquidity to support its working capital
requirements which are primarily inventory, accounts receivable and debt
service. Cash flow from operations has been and is expected to continue as the
principal source of the Company's working capital. The Company also has a
revolving credit facility to support fluctuations in its working capital
requirements and further believes that, if needed, additional funds could be
obtained from various sources on commercially reasonable terms. In addition,
approximately $5,600,000 of additional net proceeds may be realized upon the
exercise of Class A and Class B Warrants issued during June 1994, which are
redeemable by the Company under specified conditions.

      At April 27, 1997 the Company had working capital of approximately
$10,831,000 and a current ratio of 2.5 to 1 compared to approximately $8,364,000
and 3.1 to 1, respectively, at April 28, 1996. The increase in working capital
of $2,467,000 was primarily caused by increases of approximately $2,150,000 in
<PAGE>   21
                                                                              21



deferred income taxes, $2,394,000 in accounts receivable, and $1,159,000 of
inventory partially offset by $1,621,000 of increases in accounts payable and
accrued expenses, and $1,670,000 of the short-term portion of the revolving
credit facility, as the majority of the revolver is expected to be repaid in
Fiscal 1998.

      The Company's operating activities utilized net cash of approximately
$205,000 during Fiscal 1997 as compared to cash provided of approximately
$1,022,000 during Fiscal 1996. Cash payments of non-recurring expenses reflected
in Fiscal 1997 net income, which were associated with the attempted acquisition
and the related proxy contest costs, were partially responsible for the
reduction in cash provided by operating activities. Increases in accounts
receivable and inventory, which were largely offset by increases in accounts
payable and accrued expenses, also contributed to the decrease in cash.

      As of April 27, 1997, the Company had additional borrowing capacity of
approximately $2,105,000 under its revolving credit facility subject to
eligibility requirements as provided by the Company's bank agreement, as amended
April 25, 1997 and approximately $5,600,000 of additional funds which may be
available from the exercise of warrants as described above. The Company believes
that available cash resources will be sufficient to fund cash requirements
during Fiscal 1998.

IMPACT OF INFLATION

      The rate of inflation continues to have a marginal impact on the
operations of the Company. While management routinely assesses the possible
effects of inflation with respect to the Company's future business plans, the
rate of inflation is not expected to have a material impact upon the growth of
the Company during Fiscal 1998.
<PAGE>   22
                                                                              22



ITEM 8.     FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

      For information concerning this Item, see "Item 14.  Exhibits, Financial
Statement Schedules, and Reports on Form 8-K."

ITEM 9.     CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS
            ON ACCOUNTING AND FINANCIAL DISCLOSURE.

      None.
<PAGE>   23
                                                                              23


                                    PART III

ITEM 10.    DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

DIRECTORS AND EXECUTIVE OFFICERS

      Certain information with respect to the executive officers and directors
of the Registrant is set forth below:

<TABLE>
<CAPTION>
                                Positions
Name                            with the Company                         Age
- ----                            ----------------                         ---
<S>                             <C>                                      <C>
William J. Lacourciere          Chairman of the Board,                   57
                                President, Chief Executive
                                Officer and Director (Class C)

Joseph A. Vincent               Executive Vice President, Chief          45
                                Operating Officer, Treasurer
                                and Secretary

Leslie E. Mace                  Vice President - Engineering             51

Philip F. Nuzzo                 Vice President - Marketing and           44
                                Product Development

Paul A. Cote                    Director (Class A)                       67

Vartan Ghugasian                Director (Class A)                       52

Thomas M. Haythe                Director (Class C)                       57

Photios T. Paulson              Director (Class B)                       58

Steven J. Shulman               Director (Class B)                       45
</TABLE>


      William J. Lacourciere has been Chairman of the Board of the Company since
September 1991, Chief Executive Officer since February 1991, President since
August 1986 and a director since October 1982. He served as Chief Operating
Officer from March 1983 to February 1991. Mr. Lacourciere served as Executive
Vice President from March 1983 to August 1986. From October 1982 to March 1983,
he served as Executive Vice President - Marketing. From April 1980 to October
1982, Mr. Lacourciere served as Vice President - Domestic Sales.

      Joseph A. Vincent, CMA was appointed Executive Vice President and Chief
Operating Officer of the Company in February 1997. Mr. Vincent served as Vice
President - Finance from August 1991 to February 1997 and as Chief Financial
Officer from April 1990 to February 1997. He has been Secretary since April 1990
<PAGE>   24
                                                                              24



and Treasurer since February 1991 and served as Controller from September 1984
to April 1990. Mr. Vincent held various positions with Picker International,
Inc. (a manufacturer of medical diagnostic instruments and supplies) from August
1974 until joining the Company in August 1983. Mr. Vincent was a director of the
Company from February 1994 to November 1996.

      Leslie E. Mace has been Vice President - Engineering of the Company and
General Manager of the Company's Cascadia Division in Redmond, Washington since
March 1991. He served as Vice President of the Company's Cascadia Division from
May 1989 to March 1991. Mr. Mace served as Vice President, Chief Operating
Officer and Engineering Manager of Cascadia Technology Corporation, a Washington
corporation (research and development company), from prior to 1988 to April
1989.

      Philip F. Nuzzo was appointed Vice President - Marketing and Product
Development of the Company in August 1996. He served as Director of Marketing
from February 1993 to August 1996, as Marketing Manager from July 1989 to
February 1993, and as Product Manager from January 1986 to July 1989. Prior to
joining Novametrix, Mr. Nuzzo, a licensed Respiratory Care Practitioner,
obtained his clinical experience with several hospitals including St. Joseph's
Hospital in Bellingham, Washington and LAC/USC Medical Center in Los Angeles,
California.

      Paul A. Cote has been a director of the Company since November 1996. Mr.
Cote has been a practicing lawyer in Maine since 1955 and is the President and
Director of the law firm of Cote, Cote & Hamann. Mr. Cote was a member of the
Board of Directors of Secor Federal Savings & Loan, Birmingham, Alabama (1992 -
1993) and the Advisory Boards of Fleet Bank (1990-1992) and Northeast Bankshares
Association (later became Norstar and subsequently Fleet) (1975-1989).

      Vartan Ghugasian has been a director of the Company since November 1996.
Dr. Ghugasian has been a practicing dentist in Massachusetts since 1972. Dr.
Ghugasian has enjoyed a number of academic appointments, including as an
Associate in Prosthetic Dentistry, Harvard School of Dental Medicine, from 1980
until 1993. Dr. Ghugasian is a director of the Karagheusian Commemorative
Corporation, New York, New York. Dr. Ghugasian is a member of the Novametrix 13D
Stockholders Group. See "Security Ownership of Certain Beneficial Owners" under
"Item 12, Security Ownership of Certain Beneficial Owners and Management."

      Thomas M. Haythe has been a director of the Company since March 1978. He
has been a partner at the law firm of Haythe & Curley since prior to 1991. Mr.
Haythe also serves as a director of Isomedix Inc., a provider of commercial
sterilization services, Guest Supply, Inc., a provider of hotel guest room
amenities and accessories, Westerbeke Corporation, a manufacturer of marine
engine products and Ramsay Health Care, Inc., a provider of psychiatric
healthcare services.
<PAGE>   25
                                                                              25



      Photios T. Paulson has been a director of the Company since July 1992. Mr.
Paulson has served as Vice President of bioAlliance, SA, a privately-held French
holding company, since January 1995, Chairman of bioMerieux Vitek Inc., a
manufacturer of clinical diagnostic systems, since July 1991 and as Senior
Adviser-Health Care Industry and International Investment Banking for Prudential
Securities Inc. since prior to 1991.

      Steven J. Shulman has been a director of the Company since November 1993.
Mr. Shulman was recently named President and Chief Executive Officer of Prudent
ial HealthCare, one of the nation's ten largest healthcare providers. Mr.
Shulman previously served as President, Pharmacy & Disease Management Group of
Value Health, Inc., a provider of specialty managed care programs, from November
1995 to March 1997. Mr. Shulman served as Executive Vice President from April
1991 until September 1993, and Senior Vice President from prior to 1989 until
September 1993 of Value Health.  From October 1990 through April 1991 he served
as the acting President and Chief Executive Officer of American PsychManagement,
Inc. a wholly-owned subsidiary of Value Health. Mr. Shulman has been a director
of Value Health since April 1991.Prior to 1989, Mr. Shulman held various
managerial positions at CIGNA Healthplan, Inc., a provider of group life and
health insurance, including managed care products. Mr. Shulman is also a
director of Ramsay Health Care, Inc., a provider of psychiatric healthcare
services.                     

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

      Section 16(a) of the Securities Exchange Act of 1934 requires the
Company's directors and executive officers, and persons who own more than ten
percent of the Company's Common Stock, to file with the Securities and Exchange
Commission initial reports of ownership and reports of changes in ownership of
Common Stock. Officers, directors and greater than ten percent stockholders are
required by Securities and Exchange Commission regulations to furnish the
Company with copies of all Section 16(a) reports they file.

      To the Company's knowledge, based solely on a review of copies of such
reports furnished and confirmations that no other reports were required during
the fiscal year ended April 27, 1997, except as provided below, its directors,
executive officers and greater than percent stockholders complied with all
Section 16(a) filing requirements. Mr. Cote and Dr. Ghugasian were elected as
Directors of the Company at the 1996 Annual Meeting of Stockholders of the
Company and filed their initial reports of ownership on Form 3 in February 1997.
<PAGE>   26
                                                                              26



ITEM 11.    EXECUTIVE COMPENSATION.

ADDITIONAL INFORMATION INCORPORATED BY REFERENCE

      In addition to the information set forth below, certain information
concerning this item is provided under the captions "Compensation and Stock
Option Committee Interlocks and Insider Participation," "Performance Graph" and
"Report of the Compensation and Stock Option Committee" in the Proxy Statement
to be dated on or about August 22, 1997, which information is incorporated
herein by reference.

COMPENSATION OF EXECUTIVE OFFICERS

      The following table sets forth information for the fiscal years ended
April 27, 1997, April 28, 1996 and April 30, 1995 concerning the compensation of
the Company's Chief Executive Officer and other executive officers of the
Company whose total annual salary and bonus exceeded $100,000 during the fiscal
year ended April 27, 1997.

                          SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                                          Long Term
                                                                         Compensation
                                               Annual Compensation         Awards
Name and                          Fiscal      ----------------------     --------------     All Other
Principal Position                 Year        Salary         Bonus       Stock Options  Compensation (1)
- --------------------               ----       --------       -------      -------------  ----------------
<S>                                <C>        <C>            <C>          <C>            <C>
William J. Lacourciere             1997       $220,192       $     0              0          $3,155
  Chairman of the Board,           1996        200,000        15,000              0           4,511
  President and Chief              1995        200,000        25,000         30,000           4,478
  Executive Officer

Joseph A. Vincent                  1997        115,000        20,000              0           2,722
  Chief Operating                  1996        104,904        10,000              0           3,141
  Officer, Executive               1995        100,000        15,000         20,000           2,651
  Vice President,
  Treasurer and
  Secretary

Philip F. Nuzzo(2)                 1997        110,780             0              0           2,447
  Vice President -                 1996             --            --             --              --
  Marketing and Product            1995             --            --             --              --
  Development
</TABLE>


(1) Includes contributions made by the Company on behalf of the named executive
    officers to the Company's Employee Stock Ownership Plan (the "ESOP"), the
    Company's 401(k) Plan and a term life insurance plan.
<PAGE>   27
                                                                              27



(2) Mr. Nuzzo was appointed Vice President - Marketing and Product Development
    of the Company effective August 1996.


      The following table sets forth the number of options held by the executive
officers named in the Summary Compensation Table at April 27, 1997, the
aggregate market value, net of exercise price of such shares on the date of such
exercise for each such executive officer, and the number and value of options
held by such officers at April 27, 1997.


                 AGGREGATED OPTION EXERCISES IN THE FISCAL YEAR
             ENDED APRIL 27, 1997 AND FISCAL YEAR END OPTION VALUES

<TABLE>
<CAPTION>
                                                                 Number of Unexercised            Value of Unexercised
                                                                 Securities Underlying            In-the Money Options
                                                                Options at April 27, 1997          at April 27, 1997(1)
                                    Shares                      --------------------------     ---------------------------
                                   Acquired      Value
Name                             on Exercise    Realized        Exercisable   Unexercisable    Exercisable   Unexercisable
- ----                             -----------    --------        -----------   -------------    -----------   -------------
<S>                              <C>            <C>             <C>             <C>              <C>           <C>
William J. Lacourcier               - 0 -          - 0 -          20,000          10,000           $27,500        $13,750
Joseph A. Vincent                  45,000       $170,625(2)       13,333           6,667            18,333          9,167
Philip F. Nuzzo                     - 0 -          - 0 -          28,833           6,667            68,190          9,167
</TABLE>

- ---------------

(1)  In-the-money options are those where the fair market value of the
     underlying Common Stock exceeds the exercise price thereof. The value of
     in-the-money options is determined in accordance with regulations of the
     Securities and Exchange Commission by subtracting the aggregate exercise
     price of the options from the aggregate year-end market value of the
     underlying Common Stock.

(2)  Value shown reflects the aggregate market value on the date of exercise for
     the shares of Common Stock acquired, net of exercise price, determined
     without regard to forfeiture restrictions to which such shares are subject
     until March 20, 1998.


COMPENSATION OF DIRECTORS

      The Company has a policy of paying its directors who are not employees of
the Company an annual fee of $7,500, $1,000 for each meeting of the Board of
Directors of the Company attended and $500 for each telephone and committee
meeting attended. Directors are also reimbursed for out-of-pocket expenses
incurred in attending meetings.

      During Fiscal 1997 the non-employee Directors of the Company were granted
options to purchase Common Stock of the Company. Options for 25,000 shares have
been granted to each of Mr. Haythe, Mr. Paulson and Mr. Shulman and options for
10,000 shares have been granted to each of Mr. Cote and Dr. Ghugasian. All of
such options were granted with an exercise price equal to the market price of
the Common
<PAGE>   28
                                                                              28



Stock on the date of grant and become exercisable in one-third increments on the
first, second and third anniversaries of the date of grant.

EMPLOYMENT AGREEMENTS

      The Company has entered into an employment agreement with Mr. Lacourciere.
The term of the employment agreement commenced as of June 1, 1988 and is
automatically extended on an annual basis, unless a notice of non-extension is
given by either party. The current term of the agreement, as so extended,
expires on December 31, 1997. The employment agreement provided for an initial
annual salary of $200,000, subject to increases based on increases in the
Consumer Price Index and additional increases at the discretion of the Board of
Directors. The salary under the employment agreement is currently $250,000 per
year. The agreement also provides, in the event of the termination of Mr.
Lacourciere's employment by the Company other than for cause, for a cash payment
to Mr. Lacourciere equal to three times his average annual cash compensation
during the five most recent taxable years of the Company ending before the date
of such termination, less $1,000. In the event Mr. Lacourciere's employment with
the Company is terminated at this time, such termination payment would be
approximately $581,000. In the event of the occurrence of certain change of
control events involving the Company without the approval of the Board of
Directors, Mr. Lacourciere may terminate his employment with the Company during
the one-year period following any such change of control event and such
termination of employment would entitle him to the same termination payment. In
the event the Board of Directors approves the change of control event, Mr.
Lacourciere may terminate his employment agreement with the Company during the
one-year period following any such change of control event; however, Mr.
Lacourciere will not be entitled to a termination payment.
<PAGE>   29
                                                                    29



ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
            AND MANAGEMENT.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS

      The stockholders (including any "group," as that term is used in Section
13(d)(3) of the Securities Exchange Act of 1934) who, to the knowledge of the
Board of Directors of the Company, owned beneficially more than five percent of
any class of the outstanding voting securities of the Company as of July 1,
1997, and their respective shareholdings as of such date (according to
information furnished by them to the Company), are set forth in the following
table. Except as indicated in the footnotes to the table, all of such shares are
owned with sole voting and investment power.

<TABLE>
<CAPTION>
                                    TITLE OF        SHARES          PERCENT
NAME AND ADDRESS                     CLASS    BENEFICIALLY OWNED    OF CLASS
- ----------------                     -----    ------------------    --------
<S>                                  <C>      <C>                   <C>
Novametrix 13D Stockholders Group    Common       423,970 (1)         5.8%
  184 Main Street
  Lewiston, Maine  04243

Charles F. Manning, Jr., M.D.        Common       575,338 (2)         7.9%
Group........................
  1831 Ox Bottom Road
  Tallahassee, Florida  32312

First Union Corporation......        Common       716,182 (3)         9.0%
  One First Union Center             Series B
  Charlotte, North Carolina  28288   Preferred     40,000 (3)         100%

William J. Lacourciere.......        Common       380,990 (4)         5.2%
  5 Technology Drive
  Wallingford, Connecticut  06492
</TABLE>


(1)  Information as to the Novametrix 13D Stockholders Group, is based upon
     reports on Schedule 13D filed with the Commission by such Group. Such
     reports indicate that such Group beneficially owns an aggregate of 423,970
     shares, which includes 75,530 shares issuable on the exercise of currently
     exercisable warrants.

(2)  Information as to the Charles F. Manning, Jr., M.D. Group, is based upon
     reports on Schedule 13D filed with the Commission by such Group. Such
     reports indicate that such Group beneficially owns an aggregate of 575,338
     shares, which includes 72,570 shares issuable on the exercise of currently
     exercisable warrants.

(3)  Consists of (i) 444,444 shares issuable upon the conversion of 40,000
     shares of Series B Preferred Stock and (ii) 271,738 shares issuable upon
     the exercise of currently exercisable warrants held by First Union
     Corporation ("First Union"), which warrants will expire on May 23, 2000.
     The Series B
<PAGE>   30
                                                                              30



     Preferred Stock and warrants currently held by First Union as a result of
     First Union's merger with First Fidelity Bancorporation consummated in
     January 1996 were previously held by First Fidelity Bank, Connecticut
     ("FFB-CT"), a wholly owned subsidiary of First Fidelity Bancorporation.
     Information as to the holdings of First Union is based upon a report on
     Schedule 13D filed with the Commission by FFB-CT and Northeast Bancorp,
     Inc., its parent corporation prior to the acquisition of FFB-CT by First
     Fidelity Bancorporation.

(4)  Includes (i) 5,887 shares held for the account of Mr. Lacourciere under the
     ESOP, (ii) 1,000 shares issuable upon the exercise of Class A warrants and
     1,000 shares issuable upon the exercise of Class B warrants held by Mr.
     Lacourciere, which warrants are currently exercisable and will expire on
     December 8, 1997 and December 8, 1999, respectively, and (iii) 30,000
     shares issuable upon the exercise of currently exercisable options held by
     Mr. Lacourciere.

SECURITY OWNERSHIP OF MANAGEMENT

      The following table sets forth, as of July 1, 1997, the number of shares
of the outstanding voting securities of the Company beneficially owned by each
of the Company's directors and each executive officer named in the Summary
Compensation Table, and all directors and executive officers as a group,
according to information furnished by such persons to the Company.


<TABLE>
<CAPTION>
                                                TITLE OF                 SHARES             PERCENT
NAME AND ADDRESS                                  CLASS            BENEFICIALLY OWNED       OF CLASS
- ----------------                                  -----            ------------------       --------
<S>                                               <C>              <C>                      <C>
Paul A. Cote...................                   Common               90,695 (1)              1.2%
      Director of the Company

Vartan Ghugasian...............                   Common               57,500 (2)                 *
      Director of the Company

Thomas M. Haythe...............                   Common              116,540 (3)              1.6%
      Director of the Company

William J. Lacourciere.........                   Common              380,990 (4)              5.2%
      Chairman of the Board, President
      and Chief Executive Officer of
      the Company and Director of the
      Company

Photios T. Paulson.............                   Common               15,500 (5)                 *
      Director of the Company

Steven J. Shulman..............                   Common                6,000                     *
      Director of the Company

Joseph A. Vincent..............                   Common               71,116 (6)              1.0%
      Executive Vice President, Chief
      Operating Officer, Treasurer and
      Secretary of the Company

Philip F. Nuzzo................                   Common               39,262 (7)                 *
      Vice President - Marketing and
      Product Development
</TABLE>
<PAGE>   31
                                                                              31


<TABLE>
<CAPTION>
                                                TITLE OF              SHARES               PERCENT
NAME AND ADDRESS                                  CLASS          BENEFICIALLY OWNED       OF CLASS
- ----------------                                  -----          ------------------       --------
<S>                                               <C>              <C>                      <C>
All directors and executive....                   Common              810,613(1) (2)          10.9%
       officers as a group                                                   (3) (4)
       (nine persons)                                                        (5) (6)
                                                                             (7) (8)
</TABLE>


*    Less than one percent.

(1)  Includes 20,575 shares issuable upon the exercise of currently exercisable
     warrants held by Mr. Cote, which warrants will expire on December 8, 1999.

(2)  Includes 3,000 shares issuable upon the exercise of currently exercisable
     warrants held by Dr. Ghugasian, which warrants will expire on December 8,
     1997 and (ii) 1,000 shares issuable upon the exercise of currently
     exercisable warrants held by Dr. Ghugasian, which warrants will expire on
     December 8, 1999. Does not include shares beneficially owned by the other
     members of the Novametrix 13D Group of which Dr. Ghugasian is a member.

(3)  Includes (i) 14,844 shares issuable upon the exercise of currently
     exercisable warrants held by Mr. Haythe, which warrants will expire on
     December 31, 1997 and (ii) 10,744 shares issuable upon the exercise of
     currently exercisable warrants held by Mr. Haythe, which warrants will
     expire on March 10, 1999.

(4)  Includes (i) 5,887 shares held for the account of Mr. Lacourciere under the
     ESOP, (ii) 1,000 shares issuable upon the exercise of Class A warrants and
     1,000 shares issuable upon the exercise of Class B warrants held by Mr.
     Lacourciere, which warrants are currently exercisable and will expire on
     December 8, 1997 and December 8, 1999, respectively, and (iii) 30,000
     shares issuable upon the exercise of currently exercisable stock options
     held by Mr. Lacourciere.

(5)  Includes 10,000 shares issuable upon the exercise of currently exercisable
     warrants held by Mr. Paulson, which warrants will expire on November 30,
     2002.

(6)  Includes (i) 3,158 shares held for the account of Mr. Vincent under the
     ESOP, (ii) 200 shares issuable upon the exercise of Class A warrants and
     200 shares issuable upon the exercise of Class B warrants held by Mr.
     Vincent, which warrants are currently exercisable and will expire on
     December 8, 1997 and December 8, 1999, respectively, and (iii) 20,000
     shares issuable upon the exercise of currently exercisable stock options
     held by Mr. Vincent.

(7)  Includes (i) 2,545 shares held for the account of Mr. Nuzzo under the ESOP
     and (ii) 35,500 shares issuable upon the exercise of currently exercisable
     stock options held by Mr. Nuzzo.

(8)  Includes (i) 1,475 shares held for the account of Leslie E. Mace, Vice
     President - Engineering of the Company, under the ESOP and (ii) 12,000
     shares issuable upon the exercise of currently exercisable stock options
     held by Mr. Mace.
<PAGE>   32
                                                                              32

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.


     Thomas M. Haythe, General Counsel and a director of the Company, is a
member of the law firm of Haythe & Curley, the Company's general counsel. It is
expected that Haythe & Curley will continue to render legal services to the
Company in the future.
<PAGE>   33
                                                                              33



                                     PART IV


ITEM 14.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND
            REPORTS ON FORM 8-K.

     (a)    1.    Consolidated Financial Statements:

            Information with respect to this Item regarding the consolidated
financial statements is contained on page F-1 of this Annual Report on Form
10-K.

            2.    Consolidated Financial Statement Schedules

            Information with respect to this Item regarding the consolidated
financial statement schedules is contained on page F-1 of this Annual Report on
Form 10-K.

            3.    Exhibits

            Information with respect to this Item regarding Exhibits required to
be filed pursuant to Item 601 of Regulation S-K is contained in the attached
Index to Exhibits, which Exhibits are incorporated herein by reference. Exhibits
10(a), 10(b), 10(s), 10(t), 10(u), 10(y) and 10(gg) are the management contracts
and compensatory plans or arrangements required to be filed as part of this
Annual Report on Form 10-K.


     (b)    Reports on Form 8-K:

            None.

     (c)    Exhibits:

            Information with respect to this Item regarding Exhibits required to
be filed pursuant to Item 601 of Regulation S-K is contained in the attached
Index to Exhibits, which Exhibits are incorporated herein by reference. Exhibits
10(a), 10(b), 10(s), 10(t), 10(u), 10(y) and 10(gg) are the management contracts
and compensatory plans or arrangements required to be filed as part of this
Annual Report on Form 10-K.

     (d)    Consolidated Financial Statement Schedules:

            Information with respect to this Item regarding the consolidated
financial statement schedule required by Regulation S-X which is excluded from
the
<PAGE>   34
                                                                              34



annual report to shareholders by Rule 14a-3(b) is contained on page S-1 in this
Annual Report on Form 10-K.
<PAGE>   35
                                                                              35



                                POWER OF ATTORNEY

            The registrant and each person whose signature appears below hereby
appoint William J. Lacourciere and Jeffery A. Baird as attorneys-in-fact with
full power of substitution, severally, to execute in the name and on behalf of
the registrant and each such person, individually and in each capacity stated
below, one or more amendments to the annual report which amendments may make
such changes in the report as the attorney-in-fact acting deems appropriate and
to file any such amendment to the report with the Securities and Exchange
Commission.


                                   SIGNATURES

            In accordance with Section 13 or 15(d) of the Exchange Act, the
registrant caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.


Dated:  July 25, 1997

                              NOVAMETRIX MEDICAL SYSTEMS INC.


                              By/s/William J. Lacourciere
                                -----------------------------------
                                   William J. Lacourciere
                                   Chairman of the Board,
                                   President, Chief Executive
                                   Officer and Director


            In accordance with the Exchange Act, this report has been signed
below by the following persons on behalf of the registrant and in the capacities
and on the dates indicated.

Dated:  July 25, 1997


                              By/s/William J. Lacourciere
                                -----------------------------------
                                   William J. Lacourciere
                                   Chairman of the Board,
                                   President, Chief Executive
                                   Officer and Director
<PAGE>   36
                                                                              36



Dated:  July 25, 1997

                              By/s/Jeffery A. Baird
                                -----------------------------------
                                   Jeffery A. Baird
                                   Chief Financial Officer and
                                   Principal Accounting Officer

Dated:  July 25, 1997

                              By/s/Paul A. Cote
                                -----------------------------------
                                   Paul A. Cote
                                   Director

Dated:  July 25, 1997

                              By/s/Vartan Ghugasian
                                -----------------------------------
                                   Vartan Ghugasian
                                   Director


Dated:  July 25, 1997

                              By/s/Thomas M. Haythe
                                -----------------------------------
                                   Thomas M. Haythe
                                   Director

Dated:  July 25, 1997

                              By/s/Photios T. Paulson
                                -----------------------------------
                                   Photios T. Paulson
                                   Director

Dated:  July 25, 1997

                              By
                                -----------------------------------
                                   Steven J. Shulman
                                   Director
<PAGE>   37
                           Annual Report on Form 10-K

                         Item 8 -- Financial Statements

            Item 14(a)(1) and (2) -- List of Financial Statements and
                          Financial Statement Schedule

                   Item 14(d) -- Financial Statement Schedule

                            Year ended April 27, 1997

                         Novametrix Medical Systems Inc.

                            Wallingford, Connecticut
<PAGE>   38
                         Novametrix Medical Systems Inc.

         Index to Financial Statements and Financial Statement Schedule


The report of Ernst & Young LLP, independent auditors, dated June 16, 1997, and
the following consolidated financial statements of Novametrix Medical Systems
Inc. are included in Item 8:

    Consolidated Balance Sheets -- April 27, 1997 and April 28, 1996

    Consolidated Statements of Income -- Years ended April 27, 1997, April 28,
    1996 and April 30, 1995

    Consolidated Statements of Shareholders' Equity -- Years ended April 27,
    1997, April 28, 1996 and April 30, 1995

    Consolidated Statements of Cash Flows -- Years ended April 27, 1997, April
    28, 1996 and April 30, 1995

    Notes to Consolidated Financial Statements -- April 27, 1997

The following consolidated financial statement schedule of Novametrix Medical
Systems Inc. is included in Item 14(d):

    Schedule II -- Valuation and Qualifying Accounts

All other schedules for which provision is made in the applicable accounting
regulation of the Securities and Exchange Commission are not required under the
related instructions or are inapplicable and therefore have been omitted.

                                       F-1
<PAGE>   39
                         Report of Independent Auditors

Board of Directors
Novametrix Medical Systems Inc.

We have audited the accompanying consolidated balance sheets of Novametrix
Medical Systems Inc. as of April 27, 1997 and April 28, 1996, and the related
consolidated statements of income, shareholders' equity, and cash flows for the
years ended April 27, 1997, April 28, 1996 and April 30, 1995. Our audits also
included the financial statement schedule listed in the Index at Item 14(a).
These financial statements and schedule are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the consolidated financial position of
Novametrix Medical Systems Inc. at April 27, 1997 and April 28, 1996, and the
consolidated results of its operations and its cash flows for the years ended
April 27, 1997, April 28, 1996 and April 30, 1995, in conformity with generally
accepted accounting principles. Also, in our opinion, the related financial
statement schedule, when considered in relation to the basic financial
statements taken as a whole, presents fairly in all material respects the
information set forth therein.




                                           Ernst & Young LLP

Hartford, Connecticut
June 16, 1997

                                      F-2
<PAGE>   40
                         Novametrix Medical Systems Inc.

                           Consolidated Balance Sheets


<TABLE>
<CAPTION>
                                                               APRIL 27, 1997     APRIL 28, 1996
                                                               ---------------------------------
<S>                                                            <C>                <C>
ASSETS
Current assets:
    Cash and cash equivalents                                   $   236,808        $   283,003
    Accounts receivable, less allowance for losses of
      $250,000                                                    8,328,515          5,934,528
    Inventories:
       Finished products                                          1,741,426          1,357,610
       Work in process                                            1,851,736          1,136,200
       Materials                                                  3,241,653          3,181,670
                                                                ------------------------------
                                                                  6,834,815          5,675,480

    Deferred income taxes, net                                    2,450,000            300,540

    Prepaid expenses and other current assets                       313,220            131,843
                                                                ------------------------------
Total current assets                                             18,163,358         12,325,394

Equipment, less accumulated depreciation and
    amortization of $5,396,091 in 1997 and $5,019,466 in
    1996                                                          2,286,915          1,223,988

License, technology, patent and other costs, less
    accumulated amortization of $3,675,242 in 1997 and
    $3,177,539 in 1996                                            4,174,159          4,554,520

Deferred income taxes, net                                        2,600,000            719,460
                                                                ------------------------------

                                                                $27,224,432        $18,823,362
                                                                ==============================
</TABLE>

                                       F-3
<PAGE>   41
<TABLE>
<CAPTION>
                                                                  APRIL 27, 1997      APRIL 28, 1996
                                                                  ----------------------------------
<S>                                                               <C>                 <C>
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
    Current portion of long-term debt and capital lease
       obligations                                                $  2,974,380         $  1,225,000
    Accounts payable                                                 2,058,142            1,243,490
    Accrued expenses                                                 2,299,709            1,492,990
                                                                  ---------------------------------
Total current liabilities                                            7,332,231            3,961,480

Long-term debt and capital lease obligations, less current
    portion                                                            782,275            1,333,333

Redeemable Preferred Stock, at redemption and
    liquidation value                                                1,000,000            1,000,000


    Shareholders' equity:
    Common Stock, $.01 par value, authorized 20,000,000
       shares                                                           75,255               69,860
    Additional paid-in capital                                      28,737,217           28,054,794
    Retained-earnings (deficit)                                     (8,215,508)         (13,109,067)
    Treasury stock                                                  (2,487,038)          (2,487,038)
                                                                  ---------------------------------
                                                                    18,109,926           12,528,549

                                                                  ---------------------------------
                                                                  $ 27,224,432         $ 18,823,362
                                                                  =================================
</TABLE>

See accompanying notes.

                                       F-4
<PAGE>   42
                         Novametrix Medical Systems Inc.

                        Consolidated Statements of Income


<TABLE>
<CAPTION>
                                                                                YEAR ENDED
                                                        ------------------------------------------------------------
                                                        APRIL 27, 1997         APRIL 28, 1996         APRIL 30, 1995
                                                        -------------------------------------------------------------
<S>                                                     <C>                    <C>                    <C>
Revenues:
    Net sales                                           $28,253,750             $25,260,180            $24,032,101
    Interest                                                  7,912                  13,988                 11,303
                                                        -------------------------------------------------------------
                                                         28,261,662              25,274,168             24,043,404

Costs and expenses:
    Cost of products sold                                12,307,178              10,929,686             10,555,530
    Research and product development                      3,303,822               2,714,485              2,418,652
    Selling, general and administrative                   9,306,728               9,136,806              8,978,052
    Interest                                                249,805                 286,775                372,867
    Non-recurring expenses                                2,149,910
    Other expense, net                                       20,660                  69,621                 73,936
                                                        -------------------------------------------------------------
                                                         27,338,103              23,137,373             22,399,037
                                                        -------------------------------------------------------------
Income before income taxes                                  923,559               2,136,795              1,644,367

Income tax (benefit) provision                           (4,000,000)               (980,000)                40,000
                                                        -------------------------------------------------------------
Net income                                              $ 4,923,559             $ 3,116,795            $ 1,604,367
                                                        =============================================================

Earnings per common share:
    Primary                                                  $.60                    $.39                   $.21
    Fully diluted                                            $.59                    $.39                   $.21
</TABLE>

See accompanying notes.

                                       F-5
<PAGE>   43
                         Novametrix Medical Systems Inc.

                 Consolidated Statements of Shareholders' Equity



<TABLE>
<CAPTION>
                                                                 COMMON STOCK                       PREFERRED STOCK
                                                       --------------------------------------------------------------------- 
                                                          SHARES              AMOUNT           SHARES             AMOUNT
                                                       ---------------------------------------------------------------------
<S>                                                     <C>                  <C>              <C>              <C>
Year ended April 30, 1995:
    Balance at May 1, 1994                              4,882,706            $48,827           60,000          $ 1,500,000
    Issuance of stock                                   1,253,827             12,538
    Stock issuance costs
    Dividends on Preferred Stock ($.75 a share)
    Reduction of deferred ESOP contributions
    Net income
                                                       ---------------------------------------------------------------------
Balance at April 30, 1995                               6,136,533             61,365           60,000            1,500,000

Year ended April 28, 1996:
    Issuance of stock                                     182,765              1,828
    Stock issuance costs
    Conversion of Preferred Stock                         666,666              6,667          (60,000)          (1,500,000)
    Dividends on Preferred Stock ($.75 a share)
    Net income
                                                       ---------------------------------------------------------------------
Balance at April 28, 1996                               6,985,964             69,860             -                    -

Year ended April 27, 1997:
    Issuance of stock                                     539,575              5,395
    Dividends on Preferred Stock ($.75 a share)
    Net income
                                                       ---------------------------------------------------------------------
Balance at April 27, 1997                               7,525,539            $75,255             -             $      -
                                                       =====================================================================
</TABLE>

See accompanying notes.

                                       F-6
<PAGE>   44
<TABLE>
<CAPTION>
 ADDITIONAL              RETAINED-              DEFERRED                        TREASURY STOCK
  PAID-IN                EARNINGS                 ESOP               ---------------------------------     
  CAPITAL                 DEFICIT             CONTRIBUTIONS            SHARES                 AMOUNT                 TOTAL
- -----------------------------------------------------------------------------------------------------------------------------
<S>                   <C>                     <C>                    <C>                  <C>                    <C>
$22,012,966           $(17,691,479)            $(100,000)            (338,452)            $(2,487,038)           $ 3,283,276
  5,291,754                                                                                                        5,304,292
 (1,065,035)                                                                                                      (1,065,035)
                           (75,000)                                                                                  (75,000)
                                                 100,000                                                             100,000
                         1,604,367                                                                                 1,604,367
- -----------------------------------------------------------------------------------------------------------------------------
 26,239,685            (16,162,112)                    -             (338,452)             (2,487,038)             9,151,900


    343,926                                                                                                          345,754
    (22,150)                                                                                                         (22,150)
  1,493,333                                                                                                                -
                           (63,750)                                                                                  (63,750)
                         3,116,795                                                                                 3,116,795
- -----------------------------------------------------------------------------------------------------------------------------
  28,054,794           (13,109,067)                   -              (338,452)             (2,487,038)            12,528,549


    682,423                                                                                                          687,818
                           (30,000)                                                                                  (30,000)
                         4,923,559                                                                                 4,923,559
- -----------------------------------------------------------------------------------------------------------------------------
$28,737,217           $ (8,215,508)            $      -              (338,452)            $(2,487,038)           $18,109,926
=============================================================================================================================
</TABLE>
<PAGE>   45
                         Novametrix Medical Systems Inc.

                      Consolidated Statements of Cash Flows


<TABLE>
<CAPTION>
                                                                                YEAR ENDED
                                                          -----------------------------------------------------
                                                          APRIL 27, 1997      APRIL 28, 1996     APRIL 30, 1995
                                                          -----------------------------------------------------
<S>                                                       <C>                 <C>                <C>
OPERATING ACTIVITIES
Net income                                                 $ 4,923,559         $ 3,116,795         $ 1,604,367
Adjustments to reconcile net income to net cash
    (used) provided by operating activities:
       Deferred income tax benefit                          (4,030,000)         (1,020,000)
       Depreciation                                            487,952             428,186             495,389
       Amortization                                            526,594             512,414             481,237
       Changes in operating assets and liabilities:
                Accounts receivable                         (2,393,987)           (687,357)           (911,337)
                Inventories                                 (1,159,335)           (743,620)           (352,851)
                Prepaid expenses and other current
                assets                                        (181,377)            (25,403)            281,043
                Accounts payable                               814,652            (419,460)            417,691
                Accrued expenses                               806,719            (139,808)            (92,446)
                                                           ---------------------------------------------------
Net cash (used) provided by operating activities              (205,223)          1,021,747           1,923,093

INVESTING ACTIVITIES
Purchases of equipment                                      (1,225,492)           (518,761)           (613,803)
Purchases of licenses, technology, patents and
    other                                                     (146,233)           (151,870)           (710,826)
                                                           ---------------------------------------------------
Net cash used by investing activities                       (1,371,725)           (670,631)         (1,324,629)

FINANCING ACTIVITIES
Proceeds from borrowings                                     1,420,000                               2,500,000
Principal payments on borrowings                              (547,065)           (600,000)         (6,460,007)
Principal payment on customer advance                                                                 (654,400)
Proceeds from sales of Common Stock, less
    issuance costs                                             687,818             323,604           4,095,094
Dividends on Preferred Stock                                   (30,000)            (63,750)            (75,000)
                                                           ---------------------------------------------------
Net cash provided (used) by financing activities             1,530,753            (340,146)           (594,313)
                                                           ---------------------------------------------------
(Decrease) increase in cash and cash equivalents               (46,195)             10,970               4,151

Cash and cash equivalents at beginning of year                 283,003             272,033             267,882
                                                           ---------------------------------------------------
Cash and cash equivalents at end of year                   $   236,808         $   283,003         $   272,033
                                                           ===================================================
</TABLE>

See accompanying notes.

                                       F-7
<PAGE>   46
                         Novametrix Medical Systems Inc.

                   Notes to Consolidated Financial Statements

                                 April 27, 1997


1. ACCOUNTING POLICIES

NATURE OF BUSINESS

Novametrix Medical Systems Inc. develops, manufactures and markets non-invasive
critical care monitors, sensors and accessories which are distributed worldwide
and provide continuous patient monitoring capabilities. The Company's current
product offering and future development plans utilize leading-edge technologies.
The Company markets its products domestically and internationally directly
through salespersons and outside distributors to its customers, most of which
are hospitals.

BASIS OF PRESENTATION

The consolidated financial statements include the accounts of Novametrix Medical
Systems Inc. and its wholly-owned subsidiaries (collectively, the "Company").
All significant intercompany accounts and transactions are eliminated in
consolidation.

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities at the date of the
financial statements and the reported amounts of revenues and expenses during
the reporting period. While management believes that the estimates and
assumptions used in the preparation of the financial statements are appropriate,
actual results could differ from these estimates.

REVENUE RECOGNITION AND PRODUCT WARRANTY COSTS

Revenues from sales are recognized when products are shipped. The Company
generally warrants its products against defects for up to one year; costs
related thereto are recognized as incurred and are not material to the Company's
financial statements.

CASH EQUIVALENTS

All highly liquid investments with a maturity of three months or less when
purchased are considered cash equivalents.

INVENTORIES

Inventories are stated at the lower of cost (first-in, first-out method) or
market.

                                       F-8
<PAGE>   47
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




1. ACCOUNTING POLICIES (CONTINUED)

EQUIPMENT

Equipment, including assets under capital lease obligations of $325,387 at April
27, 1997, is stated at cost, less accumulated depreciation and amortization.
Depreciation and amortization is computed over the estimated useful lives of the
assets using the straight-line method. Capital lease amortization is included in
depreciation expense.

FINANCIAL INSTRUMENTS

The carrying value of cash and cash equivalents, accounts receivable, accounts
payable and long-term debt approximates their fair value based on anticipated
cash flows and current market conditions.

LICENSE, TECHNOLOGY, PATENT AND OTHER COSTS

License, technology, patent and other costs are stated at cost, less accumulated
amortization. Amortization is computed by the straight-line method over periods
ranging from 3 to 17 years. The Company reviews license, technology, patent and
other costs for impairment whenever events or changes in circumstances indicate
that the carrying amount of the assets may not be recoverable. If such
impairment indicators are present, the Company recognizes a loss on the basis of
whether these amounts are fully recoverable from projected discounted cash flows
of the related product.

ADVERTISING COSTS

Advertising costs are generally expensed as incurred and are included in
selling, general and administrative expenses. Advertising costs were $385,749 in
1997, $364,148 in 1996 and $368,538 in 1995.

INCOME TAXES

Deferred income taxes are provided for temporary differences between the tax and
financial reporting bases of the Company's assets and liabilities based on
enacted tax rates applicable to the periods in which the differences are
expected to reverse.

                                       F-9
<PAGE>   48
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




1. ACCOUNTING POLICIES (CONTINUED)

EMPLOYEE BENEFIT PLANS

The Company has a noncontributory Employee Stock Ownership Plan ("ESOP") which
covers substantially all employees. Expense attributable to the ESOP amounted to
$11,628 in 1997, $14,068 in 1996 and $122,018 in 1995. At April 27, 1997, all
ESOP shares have been allocated to participants. ESOP shares not yet distributed
to participants (130,624) are treated as outstanding for the purpose of
computing earnings per share.

The Company has a defined contribution 401(k) savings plan which covers all
employees who meet the eligibility requirements, as defined. Participants can
contribute a percentage of their compensation, as defined by the plan agreement.
Matching contributions to the plan are determined annually by the Company and
are equal to a stated percentage of the amount contributed by the participants.
The expense related thereto was not material for fiscal years 1997, 1996 and
1995.

PER SHARE AMOUNTS

Earnings per common share amounts were computed by dividing net income by the
weighted-average number of shares of Common Stock and dilutive common stock
equivalents outstanding during the year. Common stock equivalents consist of the
Company's Preferred Stock, stock options, warrants and shares subscribed under
the Company's employee stock purchase plan. The computations of dilutive common
stock equivalents are based on the if-converted method for the Preferred Stock
and on the treasury stock method for the other common stock equivalents using
the average market price for the primary earnings per share computations and the
higher of average or year-end market price for the fully diluted earnings per
share computations. The weighted-average number of common shares and equivalents
for the primary and fully diluted earnings per share computations are 8,159,326
and 8,345,472, respectively, for 1997, 8,076,717 and 8,173,330, respectively,
for 1996 and 7,649,946 and 7,768,843, respectively, for 1995.

                                      F-10
<PAGE>   49
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




1. ACCOUNTING POLICIES (CONTINUED)

STOCK-BASED COMPENSATION

Effective in fiscal year 1996, the Company adopted Financial Accounting
Statement No. 123, "Accounting for Stock-Based Compensation." This statement
defines a fair value based method of accounting for employee stock compensation
plans. However, it also allows an entity to continue to measure compensation
cost for those plans in accordance with Accounting Principle Board (APB) Opinion
No. 25, "Accounting for Stock Issued to Employees." Under APB No. 25,
compensation cost is the excess, if any, of the quoted market price of the stock
at the grant date over the amount the employee must pay to acquire the stock.
The Company has elected to continue to account for its employee stock
compensation plans under APB No. 25. Pro forma disclosures of net earnings and
earnings per share, as if the fair value based method of accounting had been
applied, are presented in Note 4.

NON-RECURRING EXPENSES

During the third quarter of fiscal 1997, the Company's stockholders voted
against a proposed merger with Andros Holdings Inc. As a result, $2,149,910 of
merger and proxy related contest costs were expensed.

2. DEBT AND CAPITAL LEASE OBLIGATIONS

Long-term debt and capital lease obligations consist of:

<TABLE>
<CAPTION>
                                                             APRIL 27, 1997        APRIL 28, 1996
                                                          -------------------------------------------
<S>                                                       <C>                     <C>
Term loan to bank                                               $1,083,333           $1,583,333

Note payable to bank under revolving
    credit agreement                                             2,395,000              975,000

Capital lease obligations                                          278,322
                                                          -------------------------------------------
                                                                 3,756,655            2,558,333

Less current portion                                             2,974,380            1,225,000
                                                          -------------------------------------------
                                                                $  782,275           $1,333,333
                                                          ===========================================
</TABLE>

                                      F-11
<PAGE>   50
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




2. DEBT (CONTINUED)

The Company's term loan to bank is payable in monthly installments of $41,667,
plus interest at the bank's base rate plus 1/2% (9.0% at April 27, 1997) through
June 1, 1999.

The Company's revolving credit agreement, as amended April 25, 1997, limits
borrowing to a maximum of $4,500,000 until November 1, 1997 and $3,500,000
thereafter until maturity or 75% of the Company's eligible accounts receivable,
as defined. The agreement expires on August 31, 1998 and bears interest at the
London Interbank Offered Rate ("LIBOR") plus 2.0% (7.69% at April 27, 1997).

Under the terms of the revolving credit agreement and term loan, the Company is
required to maintain certain financial ratios and minimum levels of working
capital and net worth, and is restricted, among other things, from the payment
of dividends on Common Stock, new borrowings, capital expenditures and mergers.

The obligations under capital leases are at fixed interest rates of 8.87% and
9.33% and are collateralized by the leased property.

Aggregate annual maturities of long-term debt and capital lease obligations as
of April 27, 1997 follow:

<TABLE>
<CAPTION>
                                                               LONG-TERM              CAPITAL
                                                                 DEBT                 LEASES               TOTAL
                                                      -------------------------------------------------------------------
<S>                                                   <C>                           <C>                 <C>
1998                                                         $2,895,000             $100,137            $2,995,137
1999                                                            500,000              100,138               600,138
2000                                                             83,333               64,974               148,307
2001                                                                                  42,994                42,994
2002                                                                                  14,331                14,331
                                                      -------------------------------------------------------------------
Total                                                         3,478,333              322,574             3,800,907

Less: amounts representing interest on
    capital leases

                                                                                      44,252                44,252
                                                      -------------------------------------------------------------------
                                                             $3,478,333             $278,322            $3,756,655
                                                      ===================================================================
</TABLE>

Substantially all tangible assets are pledged as collateral for the term loan
and note payable to bank; substantially all cash and cash equivalents are on
deposit with the bank.

                                      F-12
<PAGE>   51
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




2. DEBT (CONTINUED)

The Company paid interest of $248,734 in 1997, $292,328 in 1996 and $374,971 in
1995.

3. CAPITAL STOCK

The Preferred Stock is issuable in one or more series. The Board of Directors of
the Company is authorized to establish, among other things, the rate of
dividends payable, redemption rights and voting rights prior to issuance.

The Company has authorized 1,000,000 shares of $1.00 par value Preferred Stock
of which 50,000 shares are designated as Series A (none issued) and 120,000
shares are designated as Series B. The Preferred Stock, Series B carries a
liquidation preference of $25.00 per share (together with all accrued but unpaid
dividends) and an annual cumulative dividend of $.75 a share payable quarterly
in arrears. (The dividend is increased to $2.25 if certain covenants are not
met.)

On December 8, 1995, 60,000 shares of Preferred Stock, Series B were converted
into 666,666 shares of Common Stock. At April 27, 1997, 40,000 shares remain
outstanding and are held by the Company's primary lender, redeemable by the
Company under certain circumstances, convertible into 444,444 shares of the
Company's Common Stock and stated at their redemption and liquidation value as
"Redeemable Preferred Stock."

At April 27, 1997 there are 3,767,603 preferred share purchase rights
outstanding. Each right entitles the registered holder to purchase one
one-hundredth of a share of Preferred Stock, Series A, for $25.00 upon the
occurrence of certain specified "takeover" events. The rights are redeemable and
exchangeable only in certain specified circumstances. As of April 27, 1997, no
takeover events had occurred and no rights were exercisable.

On June 16, 1994, the Company completed a public offering for 550,000 "units"
with each unit consisting of two shares of Common Stock, and one redeemable
Class A Warrant and one redeemable Class B Warrant. The units were subsequently
split into their component parts on December 8, 1994. Each Class A Warrant is
exercisable into one share of Common Stock at an exercise price of $4.95. Each
Class B Warrant is exercisable into one share of Common Stock at an exercise
price of $5.85.

                                      F-13
<PAGE>   52
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




4. STOCK OPTIONS, STOCK PURCHASE PLAN AND WARRANTS

Activity relating to the Company's stock option plans follows:

<TABLE>
<CAPTION>
                                      1997                           1996                           1995
                        -------------------------------------------------------------------------------------------------
                                             WEIGHTED                         WEIGHTED                          WEIGHTED
                                             AVERAGE                          AVERAGE                           AVERAGE
                                             EXERCISE                         EXERCISE                          EXERCISE
                            OPTIONS           PRICE           OPTIONS          PRICE           OPTIONS           PRICE
                         ------------------------------------------------------------------------------------------------
<S>                      <C>                 <C>              <C>             <C>              <C>              <C>
Outstanding at
  beginning of year         413,734          $3.59            413,367          $3.21           282,885           $2.05
Granted                     115,000           5.72             55,000           5.00           225,000            4.31
Exercised                   (57,782)          2.43            (43,799)          2.05           (74,018)           1.61
Cancelled                   (13,334)          5.00            (10,834)          2.73           (20,500)           5.07
                         ------------------------------------------------------------------------------------------------
Outstanding at end
  of year                   457,618          $4.23            413,734          $3.59           413,367           $3.21
                         ================================================================================================

Options exercisable
  at end of year            245,951          $3.44            212,067          $2.72           171,700           $1.83
                         ================================================================================================
</TABLE>

Exercise prices for options outstanding as of April 27, 1997 ranged from $1.00
to $6.00. The weighted average remaining contractual life of these options is
7.3 years.

At April 27, 1997, options for 25,001 shares have been authorized but not yet
granted under the Company's stock option plans.

The Company has an employee stock purchase plan expiring on December 31, 2002
for which 150,000 shares of Common Stock have been reserved. As of April 27,
1997, 63,667 shares of Common Stock had been issued under this plan.

                                      F-14
<PAGE>   53
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




4. STOCK OPTIONS, STOCK PURCHASE PLAN AND WARRANTS (CONTINUED)

The Company has redeemable Class A and Class B Warrants outstanding covering an
aggregate of 1,099,880 shares from the public offering completed on June 16,
1994 (see Note 3) and warrants for 55,000 units issued to the principal
underwriter (with each unit consisting of two shares of Common Stock, one Class
A Warrant and one Class B Warrant). The Company has also granted warrants to a
group of officers and directors, its general counsel, principal lender, key
employees and consultants to purchase shares of the Company's Common Stock. Data
relating to warrants outstanding at April 27, 1997 follows:

<TABLE>
<CAPTION>
                                                                                       NUMBER OF SHARES
        YEAR WARRANTS                             RANGE OF                          COVERED BY OUTSTANDING
           GRANTED                            EXERCISE PRICES                              WARRANTS
- ------------------------------------------------------------------------------------------------------------
<S>     <C>                                   <C>                                   <C>
            1988                              $2.625 to $5.58                              78,763
            1989                              $2.625 to $3.49                              42,976
            1990                                $.89 to $1.81                             237,068
            1991                                        $1.84                             163,043
            1992                                $.93 to $2.25                             110,471
            1993                                       $2.625                              10,000
            1994                                        $4.50                              50,000
            1995                              $4.125 to $5.85                           1,393,059
                                                                                   --------------------
                                                                                        2,085,380
                                                                                   ====================
</TABLE>

The warrants were granted at prices which equaled or exceeded the market price
of the Company's Common Stock at the date of grant. The warrants expire at
various dates from December 8, 1997 through June 20, 2004, and are all currently
exercisable. During 1997, an aggregate of 462,134 shares were exercised at
prices ranging from $.89 to $1.81 per share.

At April 27, 1997, there were 3,098,776 shares of Common Stock reserved for
issuance for: 1) the exercise of options and warrants; 2) purchases through the
Company's employee stock purchase plan; and 3) the conversion of Preferred
Stock.

                                      F-15
<PAGE>   54
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




4. STOCK OPTIONS, STOCK PURCHASE PLAN AND WARRANTS (CONTINUED)

The Company accounts for stock option grants under its stock-based compensation
plans and stock purchases under the employee stock purchase plan in accordance
with APB No. 25. Accordingly, no compensation cost has been recognized for stock
option grants since the options have exercise prices equal to the market value
of the Company's common stock at the date of grant. If compensation costs for
the Company's stock-based compensation plans had been determined based on the
fair value at the grant dates for 1997 and 1996 consistent with the method
prescribed by FAS No. 123, the Company's net income and earnings per common
share would have been adjusted to the pro forma amounts indicated below:

<TABLE>
<CAPTION>
                                                            APRIL 27, 1997           APRIL 28, 1996
                                                      ----------------------------------------------------
<S>                                                         <C>                      <C>
Pro forma net income                                          $4,828,364               $3,096,819
Pro forma earnings per share:
   Primary                                                         $.59                     $.38
   Fully diluted                                                   $.58                     $.38
</TABLE>

During the initial phase-in period, as required by FAS No. 123, the pro forma
amounts were determined based on the stock option grants and employee stock
purchases subsequent to May 1, 1995. Therefore, the pro forma amounts may not be
indicative of the effects of compensation cost on net income and earnings per
share in future years. Pro forma compensation cost relating to the stock options
is recognized over the 36 month vesting period. The fair value of each stock
option grant is estimated on the date of grant using the Black-Scholes option
pricing model with the following weighted average assumptions used for grants in
both fiscal 1997 and 1996: dividend yield of 0%; expected volatility of .294%;
risk free interest rate of 5%; and expected lives of ten years. The weighted
average fair value of stock options granted in fiscal 1997 and 1996 was $2.84
and $2.59, respectively.

5. CONTINGENCIES

The Company is a party to various legal proceedings incidental to its business.
Management believes that none of these legal proceedings will have a material
adverse effect on the Company's consolidated financial position, results of
operations or liquidity.

                                      F-16
<PAGE>   55
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




6. BUSINESS AND SIGNIFICANT CUSTOMERS

The Company considers that its products comprise a single business segment
within the medical instruments industry. The Company had export sales as
follows:

<TABLE>
<CAPTION>
                                               WESTERN
                                              HEMISPHERE
                                             (OTHER THAN
                         EUROPE               THE U.S.)                ASIA               OTHER               TOTAL
                  ------------------------------------------------------------------------------------------------------
<S>                <C>                      <C>                     <C>                 <C>               <C>
1997               $3,633,733               $3,386,274              $3,682,431          $741,442          $11,443,880
1996                4,498,005                2,949,055               3,076,383           814,325           11,337,768
1995                4,183,032                2,083,169               2,428,293           593,821            9,288,315
</TABLE>

No one customer accounted for more than 10% of net sales in 1997, 1996 or 1995.

7. OPERATING LEASES

The Company has a noncancellable long-term operating lease for its main plant
and office facility which expires in 2008. The lease requires the Company to pay
for related property taxes and insurance, contains a renewal option for five
years, a purchase option upon commencement of the sixth year of the lease and
stipulates a general inflation escalation clause. In addition, the Company
leases certain equipment under various noncancellable long-term operating
leases. Future minimum annual lease payments for these long-term operating
leases for the next five years and thereafter are:

<TABLE>
<CAPTION>
<S>                                                             <C>
1998                                                              $  498,624
1999                                                                 465,521
2000                                                                 460,763
2001                                                                 408,425
2002                                                                 408,425
Thereafter                                                         2,552,656
                                                                -------------
                                                                  $4,794,414
                                                                =============
</TABLE>

Total rental expense under operating leases was $554,272 in 1997, $398,076 in
1996 and $376,059 in 1995.

                                      F-17
<PAGE>   56
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




8. INCOME TAXES

The components of the Company's deferred income tax accounts follow:

<TABLE>
<CAPTION>
                                                                        FISCAL YEAR ENDED
                                                          1997                    1996                   1995
                                                ------------------------------------------------------------------------
<S>                                                  <C>                     <C>                     <C>
 Deferred tax assets:
  Tax credits                                        $  656,900              $   639,756             $   526,671
  Net operating loss carryforwards                    3,907,427                4,413,335               5,255,267
  Inventories - valuation allowance
       and other                                        812,122                  687,064                 665,629
  Other                                                 267,621                  166,528                 227,051
                                                ------------------------------------------------------------------------
 Total deferred tax assets                            5,644,070                5,906,683               6,674,618

 Valuation allowance for deferred
  tax assets                                           (506,141)              (4,872,987)             (6,652,586)
                                                ------------------------------------------------------------------------
                                                      5,137,929                1,033,696                  22,032

 Deferred tax liabilities                                87,929                   13,696                  22,032
                                                ------------------------------------------------------------------------
 Net deferred tax asset                              $5,050,000              $ 1,020,000             $         -
                                                ========================================================================
</TABLE>

The (benefit) provision for income taxes consists of the following:

<TABLE>
<CAPTION>
                                                                       FISCAL YEAR ENDED
                                                         1997                  1996               1995
                                                -----------------------------------------------------------
<S>                                                   <C>                   <C>                   <C>
Current tax expense                                   $    30,000           $    40,000           $40,000
Deferred tax (benefit)                                 (4,030,000)           (1,020,000)
                                                -----------------------------------------------------------
Income tax expense (benefit)                          $(4,000,000)          $  (980,000)          $40,000
                                                ===========================================================
</TABLE>

                                      F-18
<PAGE>   57
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)



8. INCOME TAXES (CONTINUED)

The provision for income taxes at the Company's tax rate differed from the
provision for income taxes at the statutory rate as follows:

<TABLE>
<CAPTION>
                                                    FISCAL YEAR ENDED
                                          1997           1996           1995
                                     --------------------------------------------
<S>                                   <C>             <C>             <C>
Computed tax expense at expected
 statutory rate                       $   314,000     $   727,000     $ 559,000
State taxes, net of federal effect         (4,000)          3,000         2,000
Alternative minimum tax                    37,000          40,000
Permanent items -- net effect              30,000           2,000         3,000
Utilization of net operating loss
 carryforwards                           (476,000)       (729,000)     (564,000)
Reduction in valuation allowance       (3,864,000)     (1,020,000)
                                     --------------------------------------------
                                      $(4,000,000)    $  (980,000)    $  40,000
                                     ============================================
</TABLE>

At April 27, 1997 the Company had net operating loss carryovers for federal
income tax reporting purposes of approximately $11,475,000 of which $6,900,000
expires in 2005, $4,200,000 expires in 2006 and $375,000 expires in 2007. The
Company has unused research and other tax credits of approximately $657,000 at
April 27, 1997 which expire in varying amounts between 1998 and 2010. Such
credits will be reflected in operations when realized. The Company also has
approximately $70,000 in state net operating loss carryovers which expire in
1999.

SFAS No. 109 requires the reduction of the deferred tax asset by a valuation
allowance if, based on the weight of available evidence, it is more likely than
not that a portion or all of the deferred tax asset will not be realized. During
1997, the Company reduced its valuation allowance by $3,864,000 due to the
Company's continued improvement in earnings and increased probability of future
taxable income. Based on the weight of available evidence, in the opinion of the
Company's management, the Company will more likely than not generate sufficient
taxable income to fully utilize the net deferred tax asset recorded on the
balance sheet at April 27, 1997.

The amount of the net operating loss carryovers and credits for federal income
tax purposes which may be used in any future year may be limited under the
provisions of the Tax Reform Act of 1986. Also, a portion of the net operating
loss carryforward for federal income tax reporting purposes is attributable to
stock options, the tax benefit of which will be reflected as an adjustment to
additional paid-in capital when realized.

Income taxes paid in 1997, 1996 and 1995 were not significant.

                                      F-19
<PAGE>   58
                         Novametrix Medical Systems Inc.

             Notes to Consolidated Financial Statements (continued)




9. QUARTERLY 1997 DATA (UNAUDITED)

<TABLE>
<CAPTION>
                                                   QUARTER                                
                           --------------------------------------------------------       TOTAL     
                            FIRST          SECOND          THIRD          FOURTH           YEAR
                           ---------------------------------------------------------------------------
<S>                     <C>             <C>             <C>             <C>             <C>
Net revenues            $ 6,422,001     $ 6,591,346     $ 7,255,157     $ 7,993,158     $ 28,261,662
Gross profit              3,683,630       3,750,873       4,042,641       4,477,340       15,954,484
Research and
    development
    expenses                799,294         842,662         814,182         847,684        3,303,822
Selling, general and
    administrative
    expenses              2,277,154       2,264,158       2,342,447       2,422,969        9,306,728
Non-recurring
    expenses                                              2,149,910                        2,149,910
Income tax benefit         (100,000)       (100,000)        (50,000)     (3,750,000)      (4,000,000)
Net income (loss)           647,874         696,158      (1,279,860)      4,859,387        4,923,559
Net earnings (loss)
    per share (fully
    diluted)            $       .08     $       .08     $      (.16)    $       .58     $        .59
</TABLE>

10. RECENT ACCOUNTING PRONOUNCEMENT

In February 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 128, "Earnings Per Share." The Statement
simplifies the standards for computing earnings per share (EPS) and makes them
comparable to international EPS standards. The Company will adopt this standard,
as required, in the first quarter of fiscal 1998. At that time, the Company will
be required to change the method currently used to compute earnings per share
and to restate all prior periods presented. Had this standard been adopted at
April 27, 1997, the Company would have reported primary earnings per share of
$.70, $.49 and $.27 for the years ended April 27, 1997, April 28, 1996 and April
30, 1995, respectively. The impact of Statement 128 on the calculation of fully
diluted earnings per share is not expected to be material.

                                      F-20
<PAGE>   59
                Novametrix Medical Systems Inc. and Subsidiaries

                Schedule II -- Valuation and Qualifying Accounts

                                 April 27, 1997

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
                        COL. A                    COL. B                   COL. C                   COL. D           COL. E
                                                                          ADDITIONS
                                                BALANCE AT        CHARGED TO       CHARGED TO
                                               BEGINNING OF       COSTS AND          OTHER                         BALANCE AT
                     DESCRIPTION                  PERIOD           EXPENSES         ACCOUNTS       DEDUCTIONS     END OF PERIOD
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                            <C>                <C>               <C>            <C>            <C>
Year ended April 27, 1997:
    Allowance for doubtful accounts
       deducted from accounts receivable         $250,000          $29,000                         $29,000 (1)       $250,000



Year ended April 28, 1996:
    Allowance for doubtful accounts
       deducted from accounts receivable         $250,000          $ 6,000                         $ 6,000 (1)       $250,000



Year ended April 30, 1995:
    Allowance for doubtful accounts
       deducted from accounts receivable         $250,000          $15,000                         $15,000 (1)       $250,000
</TABLE>

(1) Uncollectible accounts written off, net of recoveries.



                                      S-1
<PAGE>   60
                               Index to Exhibits(1)

<TABLE>
<CAPTION>
                                                                                     Page
                                                                                     ----
<S>           <C>                                                                    <C>
3(a)          Certificate of Incorporation of the Company, as amended
              (incorporated by reference to Exhibit 3(a) and 3(e) to the
              Company's Registration Statement on Form SB-2 dated June 8, 1994).       --

3(b)          Certificate of Designation of Series A Preferred Stock of the
              Company filed with the Secretary of State of the State of Delaware
              on March 17, 1989 (incorporated by reference to Exhibit 3(b) to
              the Company's Registration Statement on Form SB-2 dated June 8,
              1994).                                                                   --

3(c)          Certificate of Designation of Series B Preferred Stock of the
              Company filed with the Secretary of State of the State of Delaware
              on August 29, 1991 (incorporated by reference to Exhibit 1 to the
              Company's Current Report on Form 8-K dated August 29, 1992).             --

3(d)          By-Laws of the Company, as amended to date (incorporated by
              reference to Exhibit 3(d) of the Company's Form 10-KSB for the
              year ended April 28, 1996).                                              --

10(a)         Employment Agreement dated as of June 1, 1988 between the Company
              and William J. Lacourciere, as amended (incorporated by reference
              to Exhibit 10(a) to the Company's Registration Statement on Form
              SB-2 dated June 8, 1994).                                                --

10(b)         Amendment dated as of August 1, 1988 to the Employment Agreement
              between the Company and William J. Lacourciere (incorporated by
              reference to Exhibit 10(b) to the Company's Registration Statement
              on Form SB-2 dated June 8, 1994).                                        --
</TABLE>

- --------

              (1)  Copies of exhibits filed with this Annual Report on Form 10-K
              or incorporated by reference herein do not accompany copies hereof
              for distribution to stockholders of the Company. The Company will
              furnish a copy of any of such exhibits to any stockholder
              requesting the same for a nominal charge to cover duplicating
              costs.


                                      E-1
<PAGE>   61
<TABLE>
<S>           <C>                                                                    <C>
10(c)         Warrant Certificate of the Company, the warrants evidenced thereby
              exercisable commencing on December 29, 1989, together with
              Schedule of substantially identical warrants (incorporated by
              reference to Exhibit 10(c) to the Company's Form 10-KSB for the
              year ended April 28, 1996).                                              --

10(d)         Warrant Certificate of the Company, the warrants evidenced thereby
              exercisable commencing on May 23, 1990 (incorporated by reference
              to Exhibit 10(d) to the Company's Form 10-KSB for the year ended
              April 28, 1996).                                                         --

10(e)         Warrant Certificate of the Company, the warrants evidenced thereby
              exercisable commencing on September 15, 1988, together with
              Schedule of substantially identical warrants (incorporated by
              reference to Exhibit 10(e) to the Company's Registration Statement
              on Form SB-2 dated June 8, 1994).                                        --

10(f)         First Amendment to Warrant Certificate of the Company dated as of
              September 19, 1989, together with Schedule of substantially
              identical amendments (incorporated by reference to Exhibit 10(f)
              to the Company's Form 10-KSB for the year ended April 28, 1996).         --

10(g)         Warrant Certificate of the Company, the warrants evidenced thereby
              exercisable commencing on May 1, 1989, together with Schedule of
              substantially identical warrants (incorporated by reference to
              Exhibit 10(g) to the Company's Registration Statement on Form SB-2
              dated June 8, 1994).                                                     --

10(h)         First Amendment to Warrant Certificate of the Company dated as of
              September 19, 1989, together with Schedule of substantially
              identical amendments (incorporated by reference to Exhibit 10(h)
              to the Company's Form 10-KSB for the year ended April 28, 1996).         --

10(i)         Warrant Certificate of the Company, the warrants evidenced thereby
              exercisable commencing on January 2, 1991 (incorporated by
              reference to Exhibit 10(dd) to the Company's Registration
              Statement on Form S-1 dated December 30, 1991).                          --
</TABLE>


                                      E-2
<PAGE>   62
<TABLE>
<S>           <C>                                                                    <C>
10(j)         Form of Warrant Certificate of the Company, the warrants evidenced
              thereby exercisable commencing on December 2, 1991 (incorporated
              by reference to Exhibit 10(ee) to the Company's Registration
              Statement on Form S-1 dated December 30, 1991).                          --

10(k)         Rights Agreement dated as of March 14, 1989 between the Company
              and The Connecticut Bank and Trust Company, N.A., as Rights Agent
              ("CBT"), which includes the form of Certificate of Designation
              setting forth the terms of the Series A Preferred Stock, $1.00 par
              value, as Exhibit A, the form of Right Certificate as Exhibit B
              and the Summary of Rights to Purchase Preferred Shares as Exhibit
              C (incorporated by reference to Exhibit 10(l) to the Company's
              Registration Statement on Form SB-2 dated June 8, 1994).                 --

10(l)         Amendment to Rights Agreement dated as of October 30, 1990 among
              the Company, CBT and Mellon Bank, N.A. (incorporated by reference
              to Exhibit 10(o) to the Company's Annual Report on Form 10-K for
              the year ended April 28, 1991).                                          --

10(m)         Amendment to Rights Agreement dated as of August 29, 1991 between
              the Company and Mellon Bank, N.A. (incorporated by reference to
              Exhibit 10(p) to the Company's Registration Statement on Form S-1
              dated December 30, 1991).                                                --

10(p)         Securities Purchase Agreement dated as of August 29, 1991 among
              the Company, William W. Nicholson, Auric Partners Limited, a
              Michigan limited partnership, and Union Trust Company
              (incorporated by reference to Exhibit 2 to the Company's Current
              Report on Form 8-K dated August 29, 1991).                               --

10(q)         Third Amended and Restated Loan and Security Agreement dated as of
              August 29, 1991 among the Company, NTC Technology Inc., a Delaware
              corporation ("NTC"), and Union Trust Company (incorporated by
              reference to Exhibit 3 to the Company's Current Report on Form 8-K
              dated August 29, 1991).                                                  --
</TABLE>


                                      E-3
<PAGE>   63
<TABLE>
<S>           <C>                                                                    <C>
10(r)         First Amendment to Third Amended and Restated Loan and Security
              Agreement dated as of April 29, 1993 among the Company, NTC and
              Union Trust Company (incorporated by reference to Exhibit 5(a) to
              the Company's Current Report on Form 8-K dated April 28, 1993).          --

10(s)         1979 Stock Option Plan, as amended (incorporated by reference to
              Exhibit 10(ee) to the Company's Annual Report on Form 10-K for the
              year ended May 2, 1993).                                                 --

10(t)         1990 Stock Option Plan (incorporated by reference to Exhibit
              10(ff) to the Company's Annual Report on Form 10-K for the year
              ended May 2, 1993).                                                      --

10(u)         1992 Employee Stock Purchase Plan (incorporated by reference to
              Exhibit 10(gg) to the Company's Annual Report on Form 10-K for the
              year ended May 2, 1993) (incorporated by reference to Exhibit
              10(y) to the Company's Registration Statement on Form SB-2 dated
              June 8, 1994).                                                           --

10(v)         Form of Letter Agreement between the Company and Keane Securities
              Co., Inc. ("Keane") pursuant to which Keane will act as finder for
              the Company (incorporated by reference to Exhibit 10(z) to the
              Company's Registration Statement on Form SB-2 dated June 8, 1994).       --

10(w)         Fourth Amended and Restated Loan and Security Agreement dated as
              of June 16, 1994 among the Company, NTC and Union Trust Company
              (incorporated by reference to Exhibit 10A to the Company's
              Quarterly Report on Form 10-QSB for the three month period ended
              July 31, 1994).                                                          --

10(x)         Amendment to Securities Purchase Agreement dated as of June 16,
              1994 among the Company, William W. Nicholson, Auric Partners
              Limited and Union Trust Company (incorporated by reference to
              Exhibit 10B to the Company's Quarterly Report on Form 10-QSB for
              the three month period ended July 31, 1994).                             --

10(y)         1994 Stock Option Plan (incorporated by reference to Exhibit 4(i)
              to the Company's Registration Statement on Form S-8, dated August
              3, 1994).                                                                --
</TABLE>


                                      E-4
<PAGE>   64
<TABLE>
<S>           <C>                                                                    <C>
10(z)         Form of Representative Warrant Agreement, certificate included
              (incorporated by reference to Exhibit 4(a) to the Company's
              Registration Statement on Form SB-2 dated June 8, 1994).                 --

10(aa)        Form of Warrant Agreement, certificate included (incorporated by
              reference to Exhibit 4(b) to the Company's Registration Statement
              on Form SB-2 dated June 8, 1994).                                        --

10(bb)        Amendment No. 1 to Fourth Amended and Restated Loan and Security
              Agreement dated as of July 26, 1995 among the Company, NTC and
              First Fidelity Bank, formerly Union Trust Company (incorporated by
              reference to Exhibit 10(ff) to the Company's Annual Report on Form
              10-KSB for the year ended April 30, 1995).                               --

10(cc)        Amendment No. 3 to Rights Agreement dated as of November 28, 1995
              between the Company and Mellon Bank, N.A. (incorporated by
              reference to Exhibit 10(cc) to the Company's Form 10-KSB for the
              year ended April 28, 1996).                                              --

10(dd)        Lease dated January 4, 1996 between Nova Associates, L.L.C. and
              the Company (incorporated by reference to Exhibit 10(dd) to the
              Company's Form 10-KSB for the year ended April 28, 1996).                --

10(ee)        Amendment No. 2 to Fourth Amended and Restated Loan and Security
              Agreement dated as of October 25, 1996 among the Company, NTC and
              First Union Bank of Connecticut, formerly First Fidelity Bank.           E-6

10(ff)        Amendment No. 3 to Fourth Amended and Restated Loan and Security
              Agreement dated as of April 25, 1997 among the Company, NTC and
              First Union Bank of Connecticut.                                         E-17

10(gg)        Restricted Stock Agreement between the Company and Joseph A.
              Vincent.                                                                 E-29

11            Statement Re Computation of Per Share Earnings.                          E-35

21            Subsidiaries of the Company.                                             E-36

23            Consent of Ernst & Young LLP, Independent Auditors.                      E-37

24            Power of Attorney (See "Power of Attorney" in Form 10-K).                --

27            Financial Data Schedule.                                                 E-38
</TABLE>


                                      E-5

<PAGE>   1
                                                                  EXHIBIT 10(ee)



                            AMENDMENT NO. 2 TO FOURTH
                AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT


     THIS AGREEMENT is made and entered into as of this 25th day of October,
1996 among NOVAMETRIX MEDICAL SYSTEMS INC., a Delaware corporation having its
principal office at 56 Carpenter Lane, Wallingford, Connecticut 06492
("Novametrix"); NTC TECHNOLOGY INC., a Delaware corporation having its principal
office in Wilmington, Delaware with a mailing address in care of 56 Carpenter
Lane, Wallingford, Connecticut 06492 ("NTC"), and FIRST UNION BANK OF
CONNECTICUT, a Connecticut banking corporation having an office at 205 Church
Street, New Haven, Connecticut 06510 (the "Lender"), as AMENDMENT NO. 2 TO THE
FOURTH AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT dated as of June 16,
1994 by and among Novametrix, NTC and Union Trust Company (the "Fourth Loan
Agreement").
                               WITNESSETH:

     WHEREAS, Novametrix, NTC and Union Trust Company executed the Fourth Loan
Agreement on June 16, 1994; and

     WHEREAS, subsequent thereto, Union Trust Company changed its name to
First Fidelity Bank; and

     WHEREAS, Novametrix, NTC and First Fidelity Bank executed Amendment
No. 1 to the Fourth Amended and Restated Loan and Security Agreement on July 26,
1995; and


                                       E-6
<PAGE>   2
     WHEREAS, subsequent thereto, First Fidelity Bank changed its name to First
Union Bank of Connecticut; and

     WHEREAS, the parties now wish to amend and modify the Fourth Loan Agreement
and the Substituted Revolving Note (as defined therein) issued thereunder to,
inter alia, (i) extend the Revolving Credit Termination Date (as defined in the
Fourth Loan Agreement) to August 31, 1998; (ii) change the interest rate payable
on the Substituted Revolving Note; (iii) substitute the 1996 Substituted
Revolving Note (as defined in Section 1 below) for the existing Substituted
Revolving Note; and (iv) amend the definitions of certain terms;

     NOW, THEREFORE, the parties agree as follows:

     1.     Amendments to the Definitions of Certain Terms:  (i) The definitions
of each of the following terms, as set forth in the Fourth Loan Agreement, as
heretofore amended, are hereby amended and restated to read as follows:

     1.51 "MAXIMUM PRINCIPAL AMOUNT" means THREE MILLION FIVE HUNDRED THOUSAND
     DOLLARS ($3,500,000) or such lesser amount in increments of $100,000 as the
     Borrower and NTC may irrevocably designate from time to time, in writing,
     to the Lender (but in no event shall the Maximum Principal Amount be less
     than the actual outstanding principal balance of the 1996 Substituted
     Revolving Note at the time of such designation).

     1.78 "RELATED DOCUMENTS" means the 1996 Substituted Revolving Note and the
     Substituted Term Note, and each and every other document executed by
     Borrower or NTC in connection with the Loans or otherwise in connection
     with the Fourth Loan Agreement as amended by Amendment No. 1 and as amended
     by Amendment No. 2.

     1.82 "REVOLVING CREDIT INTEREST RATE" has the meaning set forth in
     Section 3.7 of the Fourth Loan Agreement, as amended by Amendment
     No. 2.

     1.83 "REVOLVING CREDIT TERMINATION DATE" has the meaning set forth in
     Section 3.13 of the Fourth Loan Agreement, as amended by Amendment
     No. 2.


                                       E-7
<PAGE>   3
     1.93 "SUBSTITUTED REVOLVING NOTE" shall, unless the context otherwise
     requires, mean and refer to the 1996 Substituted Revolving Note.

            (ii) The term "1996 SUBSTITUTED REVOLVING NOTE" shall have the
meaning accorded to it in Section 3.6 of the Fourth Loan Agreement as amended by
Amendment No. 2.

            (iii) All other capitalized terms used herein which are not defined
herein shall have the meaning accorded to them in the Fourth Loan Agreement as
heretofore amended.

     2.     Amended Terms Pertaining to Revolving Credit:  The following
subsections of Section 3 of the Fourth Loan Agreement, as heretofore amended
entitled "Revolving Credit", are hereby amended and restated to read as follows:

     3.6 REVOLVING CREDIT NOTE. The obligation of Borrower and NTC to repay
     the Revolving Credit and all Advances thereunder shall be evidenced by an
     amended and restated promissory note (the "1996 Substituted Revolving
     Note") substantially in the form of Exhibit 3.6 (1996) attached to
     Amendment No. 2 and executed by the Borrower and NTC concurrently
     with Amendment No. 2.

     The 1996 Substituted Revolving Note shall for all purposes be treated as
     having been issued in substitution for, and not in repayment or as a
     refunding of, the Substituted Revolving Note executed by the Borrower and
     NTC in favor of First Fidelity Bank in the face principal amount of
     $2,500,000 dated July 26, 1995.

     3.7 INTEREST RATE. Interest shall accrue on the aggregate principal amount
     of all Advances outstanding under the Revolving Credit from time to time at
     the rate set forth in the 1996 Substituted Revolving Note (the "Revolving
     Credit Interest Rate"); provided that following an Event of Default the
     applicable interest rate shall be the Default Interest Rate. Interest shall
     be calculated on the basis of a 360 day year for the actual number of days
     elapsed. Each adjustment to the Revolving Credit Interest Rate shall result
     immediately, without notice or demand of any kind, in a new rate of
     interest effective with respect to the interest period on and after the
     date of such adjustment.

     3.8 PAYMENT OF PRINCIPAL AND INTEREST. Interest shall be due and payable
     monthly, in arrears, on the first day of each month, commencing on November
     1, 1996 and continuing thereafter on the first day of each succeeding month
     on the outstanding principal balance of the 1996 Substituted Revolving
     Note. The aggregate unpaid principal amount of all Advances, together with
     accrued and unpaid interest thereon, shall be


                                       E-8
<PAGE>   4
     repaid by the Borrower and NTC on the Revolving Credit Termination
     Date.

     3.13 TERMINATION. The Revolving Credit and the Lender's Obligation to lend
     thereunder shall terminate on August 31, 1998 (the "Revolving Credit
     Termination Date"), at which time all of the sums due and owing under the
     1996 Substituted Revolving Note shall be due and payable in full. No such
     expiration or termination of the Revolving Credit shall (i) adversely
     affect or impair in any manner whatsoever any right of Lender under this
     Agreement or any of the Related Documents arising prior to such expiration
     or termination or by reason thereof, (ii) relieve the Borrower or NTC of
     any liabilities or obligations to Lender under this Agreement or any
     Related Document, or otherwise, until all of the Obligations are fully paid
     and performed, or (iii) affect any other right or remedy of the Lender
     under this Agreement or any Related Document.

     3. Reaffirmation of Representations and Warranties: Novametrix and NTC
hereby restate and reaffirm, as of the date hereof, the representations and
warranties set forth in Section 7 of the Fourth Loan Agreement, except that the
representations and warranties set forth in Section 7.9 shall be deemed to apply
to the most current set of financial information provided to the Lender, and
except as otherwise set forth on Schedule I hereto.

     Novametrix and NTC each hereby represent and warrant to the Lender that
there exists no Event of Default or Incipient Default as of the date hereof.

     4. Waiver of Claims, Defenses, Etc.: As of the date hereof, Novametrix and
NTC represent that there exist no defenses, offsets, counterclaims, reductions,
set-offs or diminutions of any kind or nature whatsoever of or to any of the
obligations of the Borrower or NTC under the Fourth Loan Agreement, as
heretofore amended, or under any of the Related Documents, or otherwise, or to
any of the rights of Lender in and to any such obligations, or to, under or by
reason of the Fourth Loan Agreement, as heretofore amended, this Amendment No.
2, or any other Related Document, or otherwise, and there exists no claims,
rights, or other


                                       E-9
<PAGE>   5
assertions of liability against Lender or any Affiliate, Subsidiary, officer,
director, employee, agent or attorney of Lender on account of any of the actions
taken by Lender or any such Person to date under or in connection with the
Fourth Loan Agreement, as heretofore amended, the Notes, the Related Documents,
or in connection with the transactions contemplated by the Fourth Loan
Agreement, as heretofore amended, the Notes, the Related Documents or otherwise.

     By execution of this Amendment No. 2, each of Novametrix and NTC hereby
waives all claims, actions and causes of action which have arisen or may arise
against Lender or any of its Affiliates, Subsidiaries, successors or assigns,
under or in connection with any of the transactions contemplated by the Fourth
Loan Agreement, as heretofore amended, or the Related Documents or any other
loan document or agreement between the Lender and Novametrix and/or NTC, or
otherwise, in respect of any matter, cause or thing arising or occurring prior
to the date hereof.

     5.     Reaffirmation of Existing Agreements: The Fourth Loan Agreement,
as heretofore amended, and the Related Documents, except to the extent expressly
herein modified, are hereby ratified and affirmed and shall be and remain in
full force and effect.

     6.     Counterparts: This Amendment No. 2 to the Fourth Loan Agreement
may be executed in counterparts, each of which shall be deemed an original, but
all of which taken together shall constitute one and the same instrument.


                                       E-10
<PAGE>   6
     Dated as of the date and year first above written.

Signed, sealed and delivered          NOVAMETRIX MEDICAL SYSTEMS
in the presence of:                   INC.

___________________________

___________________________           By/s/ William J. Lacourciere
                                      ---------------------------------
                                      William J. Lacourciere
                                      Its President

___________________________           NTC TECHNOLOGY, INC.


___________________________           By/s/ Thomas M. Haythe
                                      ---------------------------------
                                      Thomas M. Haythe
                                      Its President

___________________________           FIRST UNION BANK OF CONNECTICUT


___________________________           By/s/ Paul M. Giblon
                                      ---------------------------------
                                      Paul M. Giblon
                                      Its Senior Vice President


                                      E-11
<PAGE>   7
STATE OF CONNECTICUT  }
                      } ss.:___________, November __, 1996
COUNTY OF ___________ }

     Personally appeared, Paul M. Giblon, Senior Vice President of First Union
Bank of Connecticut, signer and sealer of the foregoing instrument who, being
duly authorized so to do executed said instrument in the name of and on behalf
of First Union Bank of Connecticut by signing his own name as Senior Vice
President.


                              __________________________________
                              Commissioner of the Superior Court


STATE OF CONNECTICUT  }
                      } ss.:___________, November __, 1996
COUNTY OF ___________ }

     Personally appeared, William J. Lacourciere, President of Novametrix
Medical Systems Inc., signer and sealer of the foregoing instrument who, being
duly authorized so to do executed said instrument in the name of and on behalf
of Novametrix Medical Systems Inc. by signing his own name as President.


                              ___________________________________
                              Commissioner of the Superior Court/
                              Notary Public (If Notary:
                              My Commission Expires: ____________


STATE OF ____________ }
                      } ss.:___________, November __, 1996
COUNTY OF ___________ }

     Personally appeared, Thomas M. Haythe, President of NTC Technology Inc.,
signer and sealer of the foregoing instrument who, being duly authorized so to
do executed said instrument in the name of and on behalf of NTC Technology, Inc.
by signing his own name as President.


                              ___________________________________
                              Commissioner of the Superior Court/
                              Notary Public (If Notary:
                              My Commission Expires: ____________


                                      E-12
<PAGE>   8
                               Exhibit 3.6 (1996)
                         1996 SUBSTITUTED REVOLVING NOTE

$3,500,000.00                                             New Haven, Connecticut
                                                                October 25, 1996

     FOR VALUE RECEIVED, the undersigned, jointly and severally, promise to pay
to the order of FIRST UNION BANK OF CONNECTICUT ("First Union"), at its office
at 205 Church Street, New Haven, Connecticut, or at such other address as First
Union or the holder hereof may direct in writing, the principal sum of THREE
MILLION FIVE HUNDRED THOUSAND DOLLARS ($3,500,000.00), or as much thereof as may
be advanced and outstanding from time to time, with interest before maturity at
a rate per annum equal to the LIBOR Rate (as hereinafter defined) plus 200 basis
points (a basis point is 1/100th of 1%) (the "Interest Rate"). The Interest Rate
shall be determined and redetermined by First Union on Friday of each week (or
if such a date is not a Business Date (as defined in the Loan Agreement), then
on the preceding Business Day). The LIBOR Rate applicable to each Interest
Period (as hereinafter defined) shall be determined by First Union, and such
determination shall be conclusive absent manifest error.

Libor Rate

     The term "LIBOR Rate" means the rate determined in accordance with the
following formula:

                           Eurodollar Base Rate
                           --------------------
                  1.00 - Eurocurrency Reserve Requirement

where such terms have the following meanings:

EUROCURRENCY RESERVE REQUIREMENT

     The term "Eurocurrency Reserve Requirements" means, for any day, the
aggregate (without duplication) of the applicable rates (expressed as a decimal)
of reserve requirements for First Union (including, without limitation, basic,
supplemental, marginal and emergency reserves) in effect on such day under
Regulation D of the Board of Governors of the Federal Reserve System (or any
successor) with respect to eurocurrency funding currently referred to as
"Eurocurrency Liabilities" in Regulation D. On the date hereof, Eurocurrency
Reserve Requirements are zero.

EURODOLLAR BASE RATE

     The term "Eurodollar Base Rate" means, with respect to each day during each
Interest Period, the rate per annum for deposits in United States dollars for a
period equal


                                      E-13
<PAGE>   9
to one month which appears on the Telerate page 3750 as of 11:00 a.m., London
time, on the first day of such Interest Period. If such rate does not appear on
the Telerate Page 3750, the rate to be utilized shall be the offered rate which
appears, or if two or more such rates appear, the average (rounded up to the
next higher 1/16 of 1%) of the offered rates which appear on the Reuters Screen
LIBO page as of 11:00 a.m., London time, on the first day of such Interest
Period.

INTEREST PERIOD

     The term "Interest Period" means the period commencing on each Friday and
ending on the following Thursday; provided that:

            (i) any Interest Period which would otherwise begin or end on a day
which is not a Business Day shall, subject to clause (ii) below begin or end, as
the case may be, on the preceding Business Day; and

            (ii) any Interest Period which would end after August 31, 1998 shall
end on August 31, 1998.

     After maturity (whether by acceleration or otherwise) or after the
occurrence of an Event of Default (as defined in the Loan Agreement, as
hereinafter defined), and whether or not judgment has been issued thereon,
interest on the amount outstanding hereunder shall accrue and be payable at the
Default Interest Rate (as defined in the Loan Agreement). Interest shall accrue
on the basis of a 360-day year, and shall be calculated according to the actual
number of days elapsed during such accrual period. Each adjustment to the
Interest Rate shall result immediately, without notice or demand of any kind, in
a new rate of interest effective with respect to the period on and after the
date of such adjustment.

     The undersigned further jointly and severally agree to pay all taxes levied
or assessed upon said principal sum against First Union or other holder of this
Note, together with all costs of collection, including attorneys' fees, incurred
in any action to collect this Note or in connection with the foreclosure or
enforcement of the lien of any other security device securing this Note or any
guarantee hereof.

     Principal and interest shall be payable as follows:

     (i)    interest shall accrue, at the rate hereinabove set forth, on the
            outstanding principal amount of this Note from and after the date
            hereof, and shall be payable monthly, in arrears, on the first day
            of each month, commencing on November 1, 1996 and continuing
            thereafter on the first day of each succeeding month until the
            principal amount outstanding hereunder is paid in full;

     (ii)   the entire principal amount outstanding under this Note together
            with all accrued and unpaid interest thereon, shall be due and
            payable in full on August 31, 1998.


                                      E-14
<PAGE>   10
     All payments hereunder (including prepayments) shall be applied first to
the payment of costs, fees and expenses due from the undersigned to First Union
or the holder hereof, then to the payment of interest, and the balance, if any,
to the payment of principal.

     As to any payment of interest or principal due under this Note which is
received more than ten (10) days after such payment is due, the undersigned
agree to pay First Union or the holder hereof, in addition to such payment, the
sum of five percent (5%) of the amount of the payment due in consideration of
First Union's or such holder's additional expenses incurred in handling such
delinquent payment; provided, however, that the foregoing shall not constitute
First Union's or such holder's permission for any such delinquent payment nor a
waiver by First Union or such holder of its remedies in the event of the failure
to make timely payments in accordance with this Note.

     This Note is issued to evidence a certain Revolving Credit, as defined in
the Loan Agreement, made available by First Union to the undersigned pursuant to
the terms of a certain Fourth Amended and Restated Loan and Security Agreement,
dated as of June 16, 1994, by and among the undersigned and Union Trust Company,
as amended by Amendment No. 1 thereto among the undersigned and First Fidelity
Bank (Union Trust Company having changed its name to First Fidelity Bank) dated
as of July 26, 1995 and as amended by Amendment No. 2 thereto among the
undersigned and First Union Bank of Connecticut (First Fidelity Bank having
changed its name to First Union Bank of Connecticut) dated of even date herewith
(the "Loan Agreement"), to which reference is hereby made for a complete
statement of the rights and obligations of the parties hereunder and thereunder.
Upon the occurrence of an Event of Default, as defined in the Loan Agreement,
the entire principal amount outstanding hereunder and all accrued and unpaid
interest hereon shall, at the option of First Union or the holder of this Note,
at once become due and payable by delivery of written notice to the undersigned
without the necessity for any further notice, demand or presentment.

     Subject to the following provisions of this Note, this Note may be prepaid
at any time in whole or in part at the option of the undersigned without any
additional payment as consideration for the privilege of making such prepayment;
provided, however, that no such partial prepayment shall affect the obligation
of the undersigned to continue to make monthly payments of interest in the
amounts hereinabove set forth. Each prepayment of principal must be accompanied
by the payment of all accrued and unpaid interest on the principal amount so
prepaid. Each prepayment of principal shall be applied as hereinabove set forth.

     EACH OF THE UNDERSIGNED ACKNOWLEDGES THAT THE TRANSECTION OF WHICH THIS
NOTE IS A PART IS A COMMERCIAL TRANSACTION, AND HEREBY VOLUNTARILY AND KNOWINGLY
WAIVES ITS RIGHTS TO NOTICE AND HEARING UNDER CHAPTER 903a OF THE CONNECTICUT
GENERAL STATUTES, OR AS OTHERWISE ALLOWED BY ANY STATE OR FEDERAL LAW WITH
RESPECT TO ANY PREJUDGMENT REMEDY WHICH LENDER MAY DESIRE TO USE.

     EACH OF THE UNDERSIGNED FURTHER WAIVES TRIAL BY JURY IN ANY ACTION OR
PROCEEDING OF ANY KIND OR NATURE IN ANY COURT WITH RESPECT TO, OR ARISING OUT
OF, THIS


                                      E-15
<PAGE>   11
NOTE AND/OR THE ENDORSEMENT OF ANY OF ITS RIGHTS AND REMEDIES. EACH OF THE
UNDERSIGNED ACKNOWLEDGES THAT IT MAKES THIS WAIVER KNOWINGLY, VOLUNTARILY AND
ONLY AFTER CONSIDERATION OF THE RAMIFICATIONS OF THIS WAIVER WITH ITS LEGAL
COUNSEL.

     The indebtedness evidenced by this Note is secured by a security interest
in certain of the assets and properties of the undersigned as more fully set
forth in the Loan Agreement.

     This Note shall for all purposes be treated as having been issued in
substitution for, and not in repayment or as a refunding of, the 1996
Substituted Revolving Note dated July 26, 1995 executed by the undersigned in
favor of First Fidelity Bank in the face principal amount of TWO MILLION FIVE
HUNDRED THOUSAND DOLLARS ($2,500,000).

     This Note shall be governed by and construed in accordance with the
substantive laws of the State of Connecticut applicable to contracts made and to
be wholly performed in such state.

                              NOVAMETRIX MEDICAL SYSTEMS INC.

                              By/s/ William J. Lacourciere
                                ---------------------------------
                                William J. Lacourciere
                                President

                              NTC TECHNOLOGY INC.


                              By/s/ Thomas M. Haythe
                                ---------------------------------
                                Thomas M. Haythe
                                President


                                      E-16

<PAGE>   1
                                                                  EXHIBIT 10(ff)


                            AMENDMENT NO. 3 TO FOURTH
                AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT


     THIS AGREEMENT is made and entered into as of the 25th day of April, 1997
among NOVAMETRIX MEDICAL SYSTEMS INC., a Delaware corporation having its
principal office at 56 Carpenter Lane, Wallingford, Connecticut 06492
("Novametrix"); NTC TECHNOLOGY INC., a Delaware corporation having its principal
office in Wilmington, Delaware with a mailing address in care of 56 Carpenter
Lane, Wallingford, Connecticut 06492 ("NTC"), and FIRST UNION BANK OF
CONNECTICUT, a Connecticut banking corporation having an office at 205 Church
Street, New Haven, Connecticut 06510 (the "Lender"), as AMENDMENT NO. 3 TO THE
FOURTH AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT dated as of June 16,
1994 by and among Novametrix, NTC and Union Trust Company (the "Fourth Loan
Agreement").

                                   WITNESSETH:

     WHEREAS, Novametrix, NTC and Union Trust Company executed the Fourth Loan
Agreement on June 16, 1994; and

     WHEREAS, subsequent thereto, Union Trust Company changed its name to
First Fidelity Bank; and

     WHEREAS, Novametrix, NTC and First Fidelity Bank executed Amendment
No. 1 to the Fourth Amended and Restated Loan and Security Agreement on July 26,
1995; and


                                      E-17
<PAGE>   2
     WHEREAS, subsequent thereto, First Fidelity Bank changed its name to First
Union Bank of Connecticut; and

     WHEREAS, Novametrix, NTC and the Lender executed Amendment No. 2 to
the Fourth Amended and Restated Loan and Security Agreement as of October 25,
1996; and

     WHEREAS, the parties now wish to amend and modify the Fourth Loan Agreement
and the Substituted Revolving Note (as defined therein) issued thereunder to,
inter alia, (i) change the interest rate payable on the Substituted Revolving
Note, (ii) substitute the 1997 Substituted Revolving Note (as defined in Section
1 below) for the 1996 Substituted Revolving Note; and (iii) amend certain
additional terms as more fully set forth below:

     NOW, THEREFORE, the parties agree as follows:

     7.     Amendments to the Definitions of Certain Terms:
(i) The definitions of each of the following terms, as set forth in the Fourth
Loan Agreement, as heretofore amended, are hereby amended and restated to read
as follows:

     1.51 "MAXIMUM PRINCIPAL AMOUNT" means (i) from the date hereof through and
     including October 31, 1997, FOUR MILLION FIVE HUNDRED THOUSAND DOLLARS
     ($4,500,000) and (ii) from November 1, 1997 and thereafter, THREE MILLION
     FIVE HUNDRED THOUSAND DOLLARS ($3,500,000), or, in either case, such lesser
     amount in increments of $100,000 as the Borrower and NTC may irrevocably
     designate from time to time, in writing, to the Lender (but in no event
     shall the Maximum Principal Amount be less than the actual outstanding
     principal balance of the 1997 Substituted Revolving Note at the time of
     such designation).

     1.78 "RELATED DOCUMENTS" means the 1997 Substituted Revolving Note and the
     Substituted Term Note, and each and every other document executed by
     Borrower or NTC in connection with the Loans or otherwise in connection
     with the Fourth Loan Agreement as amended by Amendment


                                      E-18
<PAGE>   3
     No. 1 and as amended by Amendment No. 2, and as amended by
     Amendment No. 3.

     1.82 "REVOLVING CREDIT INTEREST RATE" has the meaning set forth in
     Section 3.7 of the Fourth Loan Agreement, as amended by Amendment
     No. 3.

     1.93 "SUBSTITUTED REVOLVING NOTE" shall, unless the context otherwise
     requires, mean and refer to the 1997 Substituted Revolving Note.

            (ii) The term "1997 SUBSTITUTED REVOLVING NOTE" shall have the
meaning accorded to it in Section 3.6 of the Fourth Loan Agreement as amended by
Amendment No. 3.

            (iii) All other capitalized terms used herein which are not defined
herein shall have the meaning accorded to them in the Fourth Loan Agreement as
heretofore amended.

     8.     Amended Terms Pertaining to Revolving Credit:  The following
subsections of Section 3 of the Fourth Loan Agreement, as heretofore amended
entitled "Revolving Credit", are hereby amended and restated to read as follows:

     3.6 REVOLVING CREDIT NOTE. The obligation of Borrower and NTC to repay
     the Revolving Credit and all Advances thereunder shall be evidenced by an
     amended and restated promissory note (the "1997 Substituted Revolving
     Note") substantially in the form of Exhibit 3.6 (1997) attached to
     Amendment No. 3 and executed by the Borrower and NTC concurrently
     with Amendment No. 3.

     The 1997 Substituted Revolving Note shall for all purposes be treated as
     having been issued in substitution for, and not in repayment or as a
     refunding of, the 1996 Substituted Revolving Note executed by the Borrower
     and NTC in favor of Lender in the face principal amount of $3,500,000 dated
     October 25, 1996.

     3.7 INTEREST RATE. Interest shall accrue on the aggregate principal amount
     of all Advances outstanding under the Revolving Credit from time to time at
     the rate set forth in the 1997 Substituted Revolving Note (the "Revolving
     Credit Interest Rate"); provided that following an Event of Default the
     applicable interest rate shall be the Default Interest Rate. Interest shall
     be calculated on the basis of a 360 day year for the actual number of days
     elapsed. Each adjustment to the Revolving Credit Interest Rate shall result
     immediately, without notice or demand of any kind, in a new rate of
     interest effective with respect to the interest period on and after the
     date of such adjustment.


                                      E-19
<PAGE>   4
     3.8 PAYMENT OF PRINCIPAL AND INTEREST. Interest shall be due and payable
     monthly, in arrears, on the first day of each month, commencing on May 1,
     1997 and continuing thereafter on the first day of each succeeding month on
     the outstanding principal balance of the 1997 Substituted Revolving Note.
     On or before October 31, 1997, the Borrower and NTC shall repay a
     sufficient amount of the principal owing under the 1997 Substituted
     Revolving Note to reduce the principal balance thereof to the lesser of (i)
     $3,500,000 or (ii) the Borrowing Base. The aggregate unpaid principal
     amount of all Advances, together with accrued and unpaid interest thereon,
     shall be repaid by the Borrower and NTC on the Revolving Credit Termination
     Date.

     3.13 TERMINATION. The Revolving Credit and the Lender's Obligation to lend
     thereunder shall terminate on August 31, 1998 (the "Revolving Credit
     Termination Date"), at which time all of the sums due and owing under the
     1997 Substituted Revolving Note shall be due and payable in full. No such
     expiration or termination of the Revolving Credit shall (i) adversely
     affect or impair in any manner whatsoever any right of Lender under this
     Agreement or any of the Related Documents arising prior to such expiration
     or termination or by reason thereof, (ii) relieve the Borrower or NTC of
     any liabilities or obligations to Lender under this Agreement or any
     Related Document, or otherwise, until all of the Obligations are fully paid
     and performed, or (iii) affect any other right or remedy of the Lender
     under this Agreement or any Related Document.

     9.     Amended Terms Pertaining to Negative Covenants: The following
subsection of Section 10 of the Fourth Loan Agreement, as heretofore amended
entitled "Negative Covenants", are hereby amended and restated as follows:

            10.4 Capital Expenditures: Neither Borrower nor NTC will,
     during any Fiscal Year, make or become liable for any Capital
     Expenditures in excess of $1,000,000 in the aggregate. All Capital
     Expenditures not prohibited hereunder shall be "Permitted Capital
     Expenditures".

     10. Amended Terms Pertaining to Financial Covenants: The following
subsections of Section 10.17 of the Fourth Loan Agreement, as heretofore amended
entitled "Financial Covenants", are hereby amended and restated to read as
follows:

            a.  Net Working Capital. Borrower's Net Working Capital shall not,
     as of the last day of any Fiscal Year quarter, be less than $6,000,000.

            b. Current Ratio. The ratio of Borrower's Current Assets to its
     Current Liabilities shall not, as of the last day of any Fiscal Year
     quarter, be less than 1.75 to 1.0.


                                      E-20
<PAGE>   5
            c.  Tangible Net Worth. Borrower's Tangible Net Worth shall not, as
     of the last day of any Fiscal Year quarter, be less than $9,000,000.

     11. Reaffirmation of Representations and Warranties: Novametrix and NTC
hereby restate and reaffirm, as of the date hereof, the representations and
warranties set forth in Section 7 of the Fourth Loan Agreement, except that the
representations and warranties set forth in Section 7.9 shall be deemed to apply
to the most current set of financial information provided to the Lender, and
except as otherwise set forth on Schedule I hereto.

     Novametrix and NTC each hereby represent and warrant to the Lender that
there exists no Event of Default or Incipient Default as of the date hereof.

     12. Waiver of Claims, Defenses, Etc.: As of the date hereof, Novametrix and
NTC represent that there exist no defenses, offsets, counterclaims, reductions,
set-offs or diminutions of any kind or nature whatsoever of or to any of the
obligations of the Borrower or NTC under the Fourth Loan Agreement, as
heretofore amended, or under any of the Related Documents, or otherwise, or to
any of the rights of Lender in and to any such obligations, or to, under or by
reason of the Fourth Loan Agreement, as heretofore amended, this Amendment No.
3, or any other Related Document, or otherwise, and there exists no claims,
rights, or other assertions of liability against Lender or any Affiliate,
Subsidiary, officer, director, employee, agent or attorney of Lender on account
of any of the actions taken by Lender or any such Person to date under or in
connection with the Fourth Loan Agreement, as heretofore amended, the Notes, the
Related Documents, or in connection with the transactions contemplated by the
Fourth Loan Agreement, as heretofore amended, the Notes, the Related Documents
or otherwise.


                                      E-21
<PAGE>   6
     By execution of this Amendment No. 3, each of Novametrix and NTC hereby
waives all claims, actions and causes of action which have arisen or may arise
against Lender or any of its Affiliates, Subsidiaries, successors or assigns,
under or in connection with any of the transactions contemplated by the Fourth
Loan Agreement, as heretofore amended, or the Related Documents or any other
loan document or agreement between the Lender and Novametrix and/or NTC, or
otherwise, in respect of any matter, cause or thing arising or occurring prior
to the date hereof.

     13.    Reaffirmation of Existing Agreements:  The Fourth Loan Agreement,
as heretofore amended, and the Related Documents, except to the extent expressly
herein modified, are hereby ratified and affirmed and shall be and remain in
full force and effect.

     14.    Counterparts: This Amendment No. 3 to the Fourth Loan Agreement
may be executed in counterparts, each of which shall be deemed an original, but
all of which taken together shall constitute one and the same instrument. 
Dated as of the date and year first above written.


Signed, sealed and delivered
in the presence of                  NOVAMETRIX MEDICAL SYSTEMS

___________________________

___________________________         By/s/ William J. Lacourciere
                                      _________________________________
                                    Its President

                                    NTC TECHNOLOGY INC.
___________________________

___________________________         By/s/ Thomas J. Haythe
                                      _________________________________
                                    Its President

                                    FIRST UNION BANK OF


                                      E-22
<PAGE>   7
                                    CONNECTICUT
___________________________

___________________________         By/s/ John H. Frost
                                      ________________________________
                                    John H. Frost
                                    Its Vice President


                                      E-23
<PAGE>   8
STATE OF CONNECTICUT          }
                              } ss.:___________, April __, 1997
COUNTY OF ___________         }

     Personally appeared, John H. Frost, Vice President of First Union Bank of
Connecticut, signer and sealer of the foregoing instrument who, being duly
authorized so to do executed said instrument in the name of and on behalf of
First Union Bank of Connecticut by signing his own name as Vice President.


                              __________________________________
                              Commissioner of the Superior Court


STATE OF CONNECTICUT          }
                              } ss.:___________, April __, 1997
COUNTY OF ___________         }

     Personally appeared, __________________, ___________ of Novametrix Medical
Systems Inc., signer and sealer of the foregoing instrument who, being duly
authorized so to do executed said instrument in the name of and on behalf of
Novametrix Medical Systems Inc. by signing his own name as President.


                              __________________________________
                              Commissioner of the Superior Court/
                              Notary Public (If Notary:
                              My Commission Expires: ___________)


STATE OF          }
                  } ss.:________________, April __, 1997
COUNTY OF         }


     Personally appeared, _________________________, NTC Technology Inc., signer
and sealer of the foregoing instrument who, being duly authorized so to do
executed said instrument in the name of and on behalf of NTC Technology, Inc. by
signing his own name as President.


                              __________________________________
                              Commissioner of the Superior Court/
                              Notary Public (If Notary:
                              My Commission Expires: ____________


                                      E-24
<PAGE>   9
                               Exhibit 3.6 (1997)

                         1997 SUBSTITUTED REVOLVING NOTE

$4,500,000.00                                             New Haven, Connecticut
                                                                  April 25, 1997

     FOR VALUE RECEIVED, the undersigned, jointly and severally, promise to pay
to the order of FIRST UNION BANK OF CONNECTICUT ("First Union"), at its office
at 205 Church Street, New Haven, Connecticut, or at such other address as First
Union or the holder hereof may direct in writing, the principal sum of FOUR
MILLION FIVE HUNDRED THOUSAND DOLLARS ($4,500,000.00), or as much thereof as may
be advanced and outstanding from time to time, with interest before maturity at
a rate per annum equal to the LIBOR Market Index Rate (as hereinafter defined)
plus 200 basis points (a basis point is 1/100th of 1%), as that rate may change
from day to day in accord with changes in the LIBOR Market Index Rate (the
"Interest Rate").

     The term "LIBOR Market Index Rate" for any day is the rate (rounded to the
next higher 1/100 of 1%) per annum for deposits in United States dollars as
reported on Telerate page 3750 as of 11:00 a.m., London time, for such day, or,
if such day is not a London business day, the immediately preceding London
business day (or if not so reported, then as determined by the Bank from another
source of interbank quotation).

     After maturity (whether by acceleration or otherwise) or after the
occurrence of an Event of Default (as defined in the Loan Agreement, as
hereinafter defined), and whether or not judgment has been issued thereon,
interest on the amount outstanding hereunder shall accrue and be payable at the
Default Interest Rate (as defined in the Loan Agreement). Interest shall accrue
on the basis of a 360-day year, and shall be calculated according to the actual
number of days elapsed during such accrual period. Each adjustment to the
Interest Rate shall result immediately, without notice or demand of any kind, in
a new rate of interest effective with respect to the period on and after the
date of such adjustment.

     The undersigned further jointly and severally agree to pay all taxes levied
or assessed upon said principal sum against First Union or other holder of this
Note, together with all costs of collection, including attorneys' fees, incurred
in any action to collect this Note or in connection with the foreclosure or
enforcement of the lien of any other security device securing this Note or any
guarantee hereof.

     Principal and interest shall be payable as follows:


                                      E-25
<PAGE>   10
            (i) interest shall accrue, at the rate hereinabove set forth, on the
     outstanding principal amount of this Note from and after the date hereof,
     and shall be payable monthly, in arrears, on the first day of each month,
     commencing on May 1, 1997 and continuing thereafter on the first day of
     each succeeding month until the principal amount outstanding hereunder is
     paid in full;

            (ii) on or before October 31, 1997, the undersigned shall repay a
     sufficient amount of the principal owing under this Note to reduce the
     principal balance thereof to the lesser of (a) $3,500,000 or (b) the
     Borrowing Base (as defined in the Loan Agreement);

            (iii) the entire principal amount outstanding under this Note
     together with all accrued and unpaid interest thereon, shall be due and
     payable in full on August 31, 1998.

     All payments hereunder (including prepayments) shall be applied first to
the payment of costs, fees and expenses due from the undersigned to First Union
or the holder hereof, then to the payment of interest, and the balance, if any,
to the payment of principal.

     As to any payment of interest or principal due under this Note which is
received more than ten (10) days after such payment is due, the undersigned
agree to pay First Union or the holder hereof, in addition to such payment, the
sum of five percent (5%) of the amount of the payment due in consideration of
First Union's or such holder's additional expenses incurred in handling such
delinquent payment; provided, however, that the foregoing shall not constitute
First Union's or such holder's permission for any such delinquent payment nor a
waiver by First Union or such holder of its remedies in the event of the failure
to make timely payments in accordance with this Note.

     This Note is issued to evidence a certain Revolving Credit, as defined in
the Loan Agreement, made available by First Union to the undersigned pursuant to
the terms of a certain Fourth Amended and Restated Loan and Security Agreement,
dated as of June 16, 1994, by and among the undersigned and Union Trust Company,
as amended by Amendment No. 1 thereto among the undersigned and First Fidelity
Bank (Union Trust Company having changed its name to First Fidelity Bank) dated
as of July 26, 1995 and as amended by Amendment No. 2 thereto among the
undersigned and First Union Bank of Connecticut (First Fidelity Bank having
changed its name to First Union Bank of Connecticut) dated as of October 25,
1996 and as amended by Amendment No. 3 thereto among the undersigned and First
Union dated of even date herewith (the "Loan Agreement"), to which reference is
hereby made for a complete statement of the rights and obligations of the
parties hereunder and thereunder. Upon the occurrence of an Event of Default, as
defined in the Loan Agreement, the entire principal-amount outstanding hereunder
and all accrued and unpaid interest hereon shall, at the option of First Union
or the holder of this Note, at once become due and


                                      E-26
<PAGE>   11
payable by delivery of written notice to the undersigned without the necessity
for any further notice, demand or presentment.

     Subject to the following provisions of this Note, this Note may be prepaid
at any time in whole or in part at the option of the undersigned without any
additional payment as consideration for the privilege of making such prepayment;
provided, however, that no such partial prepayment shall affect the obligation
of the undersigned to continue to make monthly payments of interest in the
amounts hereinabove set forth. Each prepayment of principal must be accompanied
by the payment of all accrued and unpaid interest on the principal amount so
prepaid. Each prepayment of principal shall be applied as hereinabove set forth.

     EACH OF THE UNDERSIGNED ACKNOWLEDGES THAT THE TRANSECTION OF WHICH THIS
NOTE IS A PART IS A COMMERCIAL TRANSACTION, AND HEREBY VOLUNTARILY AND KNOWINGLY
WAIVES ITS RIGHTS TO NOTICE AND HEARING UNDER CHAPTER 903a OF THE CONNECTICUT
GENERAL STATUTES, OR AS OTHERWISE ALLOWED BY ANY STATE OR FEDERAL LAW WITH
RESPECT TO ANY PREJUDGMENT REMEDY WHICH LENDER MAY DESIRE TO USE.

     EACH OF THE UNDERSIGNED FURTHER WAIVES TRIAL BY JURY IN ANY ACTION OR
PROCEEDING OF ANY KIND OR NATURE IN ANY COURT WITH RESPECT TO, OR ARISING OUT
OF, THIS NOTE AND/OR THE ENDORSEMENT OF ANY OF ITS RIGHT. AND REMEDIES. EACH OF
THE UNDERSIGNED ACKNOWLEDGES THAT IT MAKES THIS WAIVER KNOWINGLY, VOLUNTARILY
AND ONLY AFTER CONSIDERATION OF THE RAMIFICATION OF THIS WAIVER WITH ITS LEGAL
COUNSEL.

     The indebtedness evidenced by this Note is secured by a security interest
in certain of the assets and properties of the undersigned as more fully set
forth in the Loan Agreement.

     This Note shall for all purposes be treated as having been issued in
substitution for, and not in repayment or as a refunding of, the 1996
Substituted Revolving Note dated October 25, 1996 executed by the undersigned in
favor of First Union in the face principal amount of THREE MILLION FIVE HUNDRED
THOUSAND DOLLARS ($3,500,000).

     This Note shall be governed by and construed in accordance with the
substantive laws of the State of Connecticut applicable to contracts made and to
be wholly performed in such state.

                              NOVAMETRIX MEDICAL SYSTEMS INC.

                              By/s/ William J. Lacourciere
                                ---------------------------------
                                William J. Lacourciere
                                President

                              NTC TECHNOLOGY INC.


                                      E-27
<PAGE>   12
                              By/s/ Thomas M. Haythe
                                ---------------------------------
                                Thomas M. Haythe
                                President


                                      E-28

<PAGE>   1
                                                                  EXHIBIT 10(gg)


                         NOVAMETRIX MEDICAL SYSTEMS INC.
                                56 Carpenter Lane
                         Wallingford, Connecticut 06492




                               September 20, 1996



Mr. Joseph A. Vincent
25 Sheffield Circle
Stratford, Connecticut  06497

Dear Joe:

            We have had a number of discussions concerning your employment with
Novametrix Medical Systems Inc., a Delaware corporation (the "Company"). Based
on these discussions and in order to induce you to continue in the employment of
the Company, the Company and you hereby agree as follows:

            15.   Payment of Bonus.  The Company agrees to pay to you a cash
bonus in the amount of $20,000.  Such bonus shall be paid to you not later than
October 30, 1996.

            16.   Restrictions on Transferability of the Shares. You currently
hold the options described on Exhibit A attached hereto to purchase an aggregate
of 45,000 shares (collectively, the "Shares" and individually a "Share") of the
common stock, $.01 par value per share ("Common Stock"), of the Company. You
agree that you shall not sell, assign, transfer, gift, devise, bequeath,
hypothecate or otherwise dispose of any of the Shares, except as provided for in
this Agreement. Any disposition or purported disposition of Shares in violation
of this Agreement shall be null and void and shall not be recorded on the books
of the Company. Notwithstanding the foregoing:

            (a) Disposition of Vested Shares and Shares which are not Vested
Shares. Shares which are "vested" in accordance with the following schedule (the
"Vested Shares") may be disposed of in the manner set forth in Subsection (b) or
(d) of this Section 2.


                                      E-29
<PAGE>   2
<TABLE>
<CAPTION>
                                         Cumulative number
                                        of Shares which are
                                           Vested Shares
                                           -------------
<S>                                      <C>
     On or before March 23, 1997.......          0

     March 24, 1997 to
      September 19, 1997...............     10,000

     September 20, 1997 to
     March 19, 1998....................     25,000

     On or after March 20, 1998........     45,000
</TABLE>


            Shares which are not Vested Shares (the "Unvested Shares") may be
disposed of only in the manner set forth in Subsection (c) or (d) of this
Section 2.

            (b)   Vested Shares.  Vested Shares held by you may be transferred
by you without restriction.

            (c) Termination of Your Employment. (i) If you shall cease to be
employed by the Company, by reason of a termination by the Company for Due Cause
(as hereafter defined) or a voluntary resignation by you, the Company shall have
the right (but not the obligation) to purchase from you all or any portion of
the Unvested Shares owned by you at the time you cease to be employed by the
Company. Such right to purchase shall be exercisable by written notice to that
effect given by the Company to you within 60 days after you have ceased to be
employed by the Company, as aforesaid. Upon the giving of such written notice,
you shall for all purposes cease to be a stockholder of the Company as to the
Unvested Shares covered by such notice and shall have no rights against the
Company or any other person in respect of such Unvested Shares except the right
to receive payment for such Unvested Shares in accordance herewith.
Notwithstanding the provisions of Subsection (a) of this Section 2, Unvested
Shares not so purchased by the Company shall upon the expiration of such 60-day
period become Vested Shares.

               (ii) At the time and date specified in the notice given by the
Company referred to in clause (c)(i), which date shall in no event be more than
15 days after the expiration of the 60-day period for the exercise of the right
to purchase set forth therein, you shall deliver to the Company, at the business
headquarters of the Company, the Unvested Shares to be sold by you in due and
proper form for transfer, against payment by the Company of the purchase price
therefor, as determined in accordance with clause (c)(iv).

              (iii) Notwithstanding the provisions of Subsection (a) of this
Section 2, if you shall cease to be employed by the Company for any reason other
than a termination by the Company for Due Cause or a voluntary resignation by
you,


                                      E-30
<PAGE>   3
Unvested Shares shall upon such termination become Vested Shares. A voluntary
resignation shall not include a termination by you by reason of your death or
disability.

            (iv) The per Share purchase price for the Unvested Shares payable by
the Company pursuant to clause (c)(ii) shall be equal to the price paid by you
to the Company for such Unvested Shares. The number of Unvested Shares to be
purchased and the per Share purchase price pursuant to this clause (c)(iv) shall
be appropriately adjusted by the Board of Directors of the Company to reflect
any subdivision or combination of the Common Stock of the Company or any stock
dividend or like event.

            (v) For purposes of this Agreement, "Due Cause" shall mean (A) gross
negligence or willful misconduct by you in the performance of the duties of your
employment with the Company, or (B) your conviction in a court of law of any
felony; provided, however, that you shall be given written notice by a majority
of the Board of Directors of the Company that it intends to terminate your
employment for Due Cause, which written notice shall specify the act or acts
upon which the majority of the Board of Directors of the Company intends so to
terminate your employment, and you shall then be given the opportunity, within
ten (10) days of your receipt of such notice, to have a meeting with the Board
of Directors of the Company to discuss such act or acts. If the basis of such
written notice is other than an act or acts described in clause (B), you shall
be given ten (10) days after such meeting within which to cease or correct the
performance (or nonperformance) giving rise to such written notice and, upon
your failure within such ten (10) days to cease or correct such performance (or
nonperformance), your employment by the Company shall automatically be
terminated hereunder for Due Cause.

            (vi) Upon the written consent of the Company, Unvested Shares may be
pledged by you to a lender in connection with any loan to you by such lender. It
shall be a condition to obtaining the Company's consent to a pledge of Unvested
Shares that the lender shall execute a copy of this Agreement and shall hold
such Unvested Shares subject to the provisions of this Agreement, and to such
other conditions as the Company, in its sole discretion, may require.

            (d) Disposition to Family Members. Shares held by you may be
transferred by you to or for the benefit of a member of your immediate family.
For the purpose of this Agreement, the term "immediate family" shall mean your
spouse and children (and the direct lineal descendants of your children). It
shall be a condition to the validity of any transfer of Shares permitted by the
provisions of this Subsection (d) that the transferee shall execute a copy of
this Agreement, shall hold such Shares subject to the provisions of this
Agreement, and shall make no further transfer of such Shares, except in
compliance with the terms and conditions of this Agreement.

            17.   Voting of Shares.  You shall have the right to vote the
Shares, whether Vested Shares or Unvested Shares.


                                      E-31
<PAGE>   4
            18.   Notice. Any notice under this Agreement shall be in writing
and delivered personally or sent by certified mail, return receipt requested,
addressed, as the case may be, (i) to the Company at its address set forth at
the head of this Agreement or such other address as may hereafter be designated
by the Company by notice to you in the manner provided herein; and (ii) to you
at your address set forth at the head of this Agreement or such other address as
may hereafter be designated by you by notice to the Company in the manner
provided herein. All notices personally delivered shall be deemed to have been
given when delivered and all notices sent by mail shall be deemed to have been
given three business days after mailing.

            19.   Successors.  The terms, covenants and conditions of this
Agreement shall inure to the benefit of and be binding upon the parties hereto
and their respective heirs, legal representatives, successors, permitted
transferees and assigns.

            20.   Applicable Law.  This Agreement shall be governed by and
construed in accordance with the laws of the State of Connecticut applicable to
agreements made and to be performed entirely within such State.

            21.   Entire Agreement.  This Agreement sets forth the entire
understanding of the parties hereto, and no modifications of or amendments to
this Agreement shall be binding on the parties hereto unless in writing and
signed by them.

            22.   Integration.  This Agreement supersedes all prior
understandings, negotiations, and agreements relating to the subject matter
hereof.

            23.   Severability.  If any provision herein contained shall be held
to be illegal or unenforceable, such holding shall not affect the validity or
enforceability of the other provisions of this Agreement.

            24.   Reorganization, Etc. The provisions of this Agreement shall
apply mutatis mutandis to any shares or other securities resulting from any
stock split or reverse split, stock dividend, reclassification, subdivision,
consolidation or reorganization of any shares or other securities of the
Company, to any shares or other securities resulting from any recapitalization,
consolidation, merger or reorganization of the Company and to any shares or
other securities of the Company or any successor company or of any parent of
such successor company which may be received by you by virtue of your ownership
of any shares of Common Stock of the Company.

            25.   Captions.  The captions appearing herein are for the
convenience of the parties only and shall not be construed to affect the meaning
of the provisions of this Agreement.


                                      * * *


                                      E-32
<PAGE>   5
            If you are in agreement with the foregoing, please execute and
deliver to the undersigned the enclosed counterpart of this Agreement, whereupon
this Agreement shall become a binding agreement between us.


                             Very truly yours,

                             NOVAMETRIX MEDICAL SYSTEMS INC.



                             By/s/ William J. Lacourciere
                               --------------------------------------



Accepted and agreed to as
aforesaid:



/s/ Joseph A. Vincent
- -------------------------------
       Joseph A. Vincent



                                      E-33
<PAGE>   6
                                                                       EXHIBIT A



       Options Granted to Joseph Vincent to Acquire Restricted Shares

<TABLE>
<CAPTION>
===================================================================================================================
Grant Date                Term                Total Shares          Exercisable Shares        Exercise Price
- -------------------------------------------------------------------------------------------------------------------
<S>                       <C>                 <C>                   <C>                       <C>
90/03/27                  10YRS               20,000                20,000                    $2.00
- -------------------------------------------------------------------------------------------------------------------
90/08/28                  10YRS               10,000                10,000                     1.00
- -------------------------------------------------------------------------------------------------------------------
91/02/26                  10YRS                5,000                 5,000                     1.25
- -------------------------------------------------------------------------------------------------------------------
92/12/01                  10YRS               10,000                10,000                     2.625
===================================================================================================================
</TABLE>


                                      E-34

<PAGE>   1
                                                                      EXHIBIT 11


                         NOVAMETRIX MEDICAL SYSTEMS INC.

                 STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS

<TABLE>
<CAPTION>
                                                    YEAR ENDED
                                -----------------------------------------------
                                    April 27,        April 28,        April 30,
                                      1997             1996             1995
                                   ----------       ----------       ----------
<S>                                <C>              <C>              <C>
PRIMARY EARNINGS PER SHARE:

Weighted average number of
   shares of Common Stock
   outstanding                       6,993,161        6,157,192        5,591,536

Net effect of dilutive common
   stock equivalents (1):

   Preferred Stock                     444,444          849,206        1,111,110

   All other                           721,721        1,070,319          947,300
                                    ----------       ----------       ----------

                                     1,166,165        1,919,525        2,058,410

Total weighted average number
   of shares of Common Stock
   and dilutive common stock
   equivalents outstanding           8,159,326        8,076,717        7,649,946
                                    ----------       ----------       ----------
NET INCOME                          $4,923,559       $3,116,795       $1,604,367

Per common share amounts (2):       $      .60       $      .39       $      .21
                                    ==========       ==========       ==========
</TABLE>


(1) Earnings per common share amounts were computed by dividing net income by
    the weighted average number of shares of Common Stock and dilutive common
    stock equivalents outstanding during the year. Common stock equivalents
    consist of the Company's Preferred Stock, stock options, warrants and shares
    subscribed under the Company's employee stock purchase plan. The
    computations of dilutive common stock equivalents are based on the
    if-converted method for the Preferred Stock and on the treasury stock method
    for the other common stock equivalents using the average market price.

(2) Fully diluted earnings per share are not materially different from primary
    earnings per share.


                                      E-35

<PAGE>   1
                                                                      EXHIBIT 21

                           SUBSIDIARIES OF THE COMPANY


1.  NTC Technology Inc.

2.  NTC Management Inc.

3.  Emertech, Sarl.

4.  Novametrix International, Ltd.



                                      E-36

<PAGE>   1
                                                                      EXHIBIT 23


                         CONSENT OF INDEPENDENT AUDITORS


We consent to the incorporation by reference in Registration Statement Number
33-58789 on Form S-3 dated April 25, 1995, Registration Statement Number
33-82336 on Form S-8 dated August 3, 1994, Post Effective Amendment No. 1 on
Form S-3 dated August 12, 1994 to Registration Statement Number 33-67478 on Form
S-1 dated August 17, 1993, and Registration Statement Number 33-44786 on Form
S-8 dated December 30, 1991 pertaining to Novametrix Medical Systems Inc. 1990
Stock Option Plan of our report dated June 16, 1997, with respect to the
consolidated financial statements of Novametrix Medical Systems Inc. included in
this Annual Report (Form 10-K) for the year ended April 27, 1997.


                                    /s/Ernst & Young, LLP


Hartford, Connecticut
July 22, 1997


                                      E-37


<TABLE> <S> <C>

                                                                
                                                               
                       
                        


<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the audited
Novametrix Medical Systems Inc. Consolidated Statements of Income for the year
ended April 27, 1997 and the Consolidated Balance Sheets at April 27, 1997, and
is qualified in its entirety by reference to such financial statements.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          APR-27-1997
<PERIOD-END>                               JAN-01-2000
<CASH>                                         236,808
<SECURITIES>                                         0
<RECEIVABLES>                                8,578,515
<ALLOWANCES>                                 (250,000)
<INVENTORY>                                  6,834,815
<CURRENT-ASSETS>                            18,163,358
<PP&E>                                       7,683,006
<DEPRECIATION>                             (5,396,091)
<TOTAL-ASSETS>                              27,224,432
<CURRENT-LIABILITIES>                        7,332,231
<BONDS>                                      1,361,655
                                0
                                  1,000,000
<COMMON>                                        75,255
<OTHER-SE>                                  18,034,671
<TOTAL-LIABILITY-AND-EQUITY>                27,224,432
<SALES>                                     28,253,750
<TOTAL-REVENUES>                            28,261,662
<CGS>                                       12,307,178
<TOTAL-COSTS>                               24,917,728
<OTHER-EXPENSES>                             2,170,570
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             249,805
<INCOME-PRETAX>                                923,559
<INCOME-TAX>                               (4,000,000)
<INCOME-CONTINUING>                          4,923,559
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 4,923,559
<EPS-PRIMARY>                                      .60
<EPS-DILUTED>                                      .59
        

</TABLE>


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