INDUSTRIAL SCIENTIFIC CORP
10-K, 1997-04-23
INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL
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<PAGE>
                                   FORM 10-K

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
  [X]    Annual Report Pursuant to Section 13 OR 15(d) of the Securities 
         Exchange Act of 1934


                   FOR THE FISCAL YEAR ENDED JANUARY 25, 1997
                        Commission File Number  0-21838

                       INDUSTRIAL SCIENTIFIC CORPORATION
            (Exact name of registrant as specified in its charter)

PENNSYLVANIA                                                25-1481281
(State or other jurisdiction of                          (I.R.S. Employer
incorporation or organization)                          Identification No.)

1001 Oakdale Road, Oakdale, PA                                  15071
(Address of principal executive offices)                     (Zip Code)
 
(Registrant's telephone number, including area code): 412-788-4353

          Securities registered pursuant to Section 12(g) of the Act:
          Common Stock, par value $.01 per share  (Title of Class)


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 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. [ X ]

As of April 17, 1997, there were 3,375,087 shares of Common Stock, par value
$.01 per share of the Registrant outstanding.  The aggregate market value of
such shares, other than shares held by persons who may be deemed affiliates of
the Registrant, was $14,594,401 based on the closing sales price reported on
Nasdaq National Market for April 17, 1997.
 
Documents Incorporated by Reference.

Portions of the 1996 Annual Report to Shareholders are incorporated by reference
into Part II and Part IV hereof.
Portions of the Proxy Statement for the 1996 Annual Meeting of Shareholders are
incorporated by reference into Part III hereof.
Portions of the Registrants Registration Statement No. 33-63182 on Form S-1 are
incorporated by reference into Part IV hereof.

<PAGE>
 
                               TABLE OF CONTENTS



Item No.                                                                 Page
- --------                                                                 ----
                                     PART 1

   1.      Business......................................................  1
   2.      Properties....................................................  5
   3.      Legal Proceedings.............................................  5 
   4.      Submission of Matters to a Vote of Security Holders...........  5
  4A.      Executive Officers of the Registrant..........................  5
 
                                    PART II
                                    -------

   5.      Market for the Registrant's Common Equity and Related
           Stockholder Matters...........................................  6
   6.      Selected Financial Data.......................................  6
   7.      Management's Discussion and Analysis of Financial Condition
           and Results of Operations.....................................  6
   8.      Financial Statements and Supplementary Data...................  6
   9.      Changes in and Disagreements on Accounting and Financial 
           Disclosure....................................................  6
 
                                    PART III
                                    --------

  10.      Directors and Executive Officers of the Registrant............  7
  11.      Executive Compensation........................................  7
  12.      Security Ownership of Certain Beneficial Owners and 
           Management....................................................  7
  13.      Certain Relationships and Related Transactions................  7


                                    PART IV
                                    -------


  14.      Exhibits, Financial Statement Schedules and Reports on 
           Form 8-K......................................................  8
<PAGE>
 
                                    PART I.


ITEM 1.   BUSINESS

Overview

Industrial Scientific Corporation designs, manufactures, markets, and services
portable instruments for detecting, measuring and monitoring a wide variety of
gases, including toxic and combustible gases and oxygen, to protect and preserve
human life.  The Company's portable gas monitoring instruments are used by
individuals for safety and industrial hygiene purposes in many different
industries, often in confined spaces posing risks of asphyxiation, poisoning and
explosion.  Each portable instrument detects, measures and monitors gases singly
or in combination, including oxygen, carbon monoxide, hydrogen sulfide,
chlorine, nitrogen dioxide, sulfur dioxide and flammable hydrocarbons such as
methane (natural gas), hexane and propane.  The Company also manufactures and
markets various instrument accessories such as sampling pumps, external warning
devices and battery chargers.

Industrial Scientific Corporation was incorporated in Pennsylvania in 1985.  Its
principal offices are located at 1001 Oakdale Road, Oakdale, Pennsylvania,
15071.  Its telephone number is 412-788-4353.


Portable Gas Monitoring Instruments

The Company manufactures portable gas monitoring instruments ranging from
single-gas to four-gas portable monitors.  All but two of the Company's
instruments continuously monitor, rather than spot-check, gases during their
period of use.  Audible and visual alarms are included in each instrument and
are activated if gases reach specified limits.  All of the Company's instruments
are portable, weighing from 6 to 26 ounces, and can be carried in a belt-mounted
leather case.  The Company's instruments are designed for ruggedness and shock
resistance.  In addition, the instruments are designed to eliminate erratic
readings and false alarms from radio frequency interference ("RFI").  All of the
instruments are designed to function for at least an entire 10-hour shift
without battery recharging or replacement.  Generally, single-gas toxic or
oxygen monitors use alkaline batteries which last from 1,300 to 2,400 hours.
Combustible gas monitors, which require higher power, generally have
rechargeable battery packs.  Multiple-gas monitors also generally use
rechargeable battery packs since combustible gas sensors are commonly included
in these monitors.  Accurate measurement of gas concentrations is a basic
requirement of gas monitors.  The Company's products combine sensors with
proprietary circuitry designed by the Company for accurate and consistent
performance across a broad range of temperatures and humidities.


                            1
<PAGE>
 
The Company also sells replacement sensors, other replacement parts and a full
line of accessories for its portable gas monitoring instruments.  These
accessories include sampling pumps and probes (for remote monitoring prior to
entry), battery chargers, carrying cases, calibration kits and gases and
external alarm devices.  Sales of portable gas monitoring instruments,
accessories, replacement parts and service accounted for 97% of the Company's
net sales for fiscal years 1994, 1995, and 1996.

Other Products
 
In addition to its portable gas monitoring instruments and accessories, the
Company manufactures and sells Lifeline(R) air filtration and monitoring
products which filter compressed air and monitor carbon monoxide levels;
conveyor belt fire detection systems for unmanned areas in coal mines; water
deluge systems triggered by heat sensors; and carbon monitoring systems for
enclosed areas such as coal preparation storage areas, parking garages and motor
pools.  Sales of these products accounted for 3% of the Company's net sales for
fiscal years 1994, 1995, and 1996.
 
Recent Acquisitions

In February 1996, the Company invested $267,000 in Industrial Scientific Arabia
Limited, a joint venture with a Saudi Arabian partner.  This investment is
accounted for using the equity method.

In October 1996, the Company acquired all of the gas monitoring systems products
manufactured by McNeill International.  The acquisition was accounted for as a
purchase and, accordingly, the purchase price has been allocated to the
respective assets acquired based on their estimated fair market values as of the
date of the acquisition.  The acquisition resulted in intangible assets of
$310,000 consisting principally of drawings, kits and software.

Marketing, Sales and Distribution

The Company's products are primarily sold through a network of independent
distributors.  The Company has 23 regional sales managers located throughout the
United States, Canada, Europe, the Middle East, and Pacific Rim to support these
distributors.  At its corporate headquarters, the Company has 22 sales and
customer service representatives who support distribution and 19 employees
dedicated to prompt product service and repair.  The Company's sales and
marketing efforts include advertising, product management, training, customer
service and sales functions.

The Company continues to concentrate on international sales growth and expects
that foreign sales will continue to contribute significantly to the Company's
revenues.  International sales accounted for approximately 12%, 13%, and 20% of
net sales for fiscal years 1994, 1995, and 1996, respectively.  The Company has
a Managing Director located in Sydney, Australia, three regional sales managers
located in Canada, a regional sales manager in the Netherlands, ten full time
employees working at its Industrial Scientific Arabia, Ltd. joint venture in the
Middle East, and an International sales manager and a Sales coordinator located
at corporate headquarters who support foreign distribution and concentrate on
international sales growth.
                              2
<PAGE>
 
The Company's five largest distributors accounted for approximately 54%, 56%,
and 48% of net sales for fiscal years 1994, 1995, and 1996, respectively.  Of
these five, Vallen Safety Supply Company, which comprised approximately 21% of
sales in fiscal 1996, is based in Houston, Texas and specializes in the
distribution of safety products.

The Company advertises extensively in trade journals and provides extensive
training materials, including videotapes, on the use and maintenance of its
products.  The Company's representatives call on customers directly and with
distributor representatives.  Additionally, the Company exhibits at most major
trade shows in the United States and Canada which emphasize safety, industrial
hygiene and environmental issues.

Research, Development and Engineering

The Company conducts research, development and engineering for existing and new
products at its primary facility near Pittsburgh, Pennsylvania and at its
Cheswick, Pennsylvania Monitor Group site.  The Company spent approximately $2.0
million, $2.4 million, and $3.0 million for research and development in fiscal
years 1994, 1995, and 1996, respectively, representing 6.2%, 7.0%, and 8.3% of
net sales in such fiscal years.

In 1996, the Company introduced the MDU420, the first instrument utilizing an
internally developed and patented infared sensor for 0 - 100% methane by volume.
The MDU420 provides full scale monitoring with a single instrument.

In March 1997, the Company announced that it had signed a letter of intent to
sell Monitor Group, the division responsible for the commercial development of
the MG2100.  The sale is expected to be completed in the first quarter 1997.

Raw Materials and Supplies


With the exception of toxic gas and oxygen sensors, the materials and supplies
used to produce the Company's products are generally available from several
suppliers.  Since 1988, the Company has purchased all of its toxic gas and
oxygen sensors from a single supplier.  The Company believes that its
relationship with this supplier is good and has not experienced any difficulties
in obtaining sensors or any other materials and supplies needed to produce its
products.

Competition

The market for gas detection and monitoring instruments is highly competitive.
The Company is in competition with many small and large enterprises.  Some of
the Company's competitors are subsidiaries or divisions of larger corporations
that have substantially greater financial resources than the Company.  The
Company believes that the principal competitive factors in all markets for its
products are the performance and reliability of products and service, product
size, technical features and price.

                               3
<PAGE>
 
Patents, Trademarks and Licenses

The Company relies primarily upon trade secret laws and confidentiality
agreements with its employees, suppliers and other third parties to protect the
Company's proprietary technology and other information.  Although the Company
does not deem patents to be critical to its ability to compete, when in its best
interests, the Company seeks patent protection for certain of its products.

Regulatory Matters

The Company's products are subject to regulation by, among other governmental
entities, the federal Mine Safety and Health Administration and, to a lesser
extent, corresponding foreign agencies.  In order to ensure that products
distributed for use in the mining industry in the United States are safe and
effective, MSHA regulates the introduction, manufacture, servicing, labeling,
distribution of and record-keeping for such products.

In manufacturing its products, the Company must comply with applicable safety
regulations and is subject to various record-keeping requirements and to
inspections.  Certain of these agencies conduct periodic inspections of the
Company's facilities.  The Company has satisfactorily passed each of its
inspections and believes that its manufacturing, documentation and quality
control procedures meet the requirements of these regulations.  If any of these
regulatory agencies were to determine that the Company's products were not
manufactured in accordance with applicable regulations, they would have the
authority, in addition to less drastic remedies, to order the Company to cease
distributing its products to the affected group of customers.

Environmental Matters

The Company is subject to various environmental laws and regulations pertaining
to the storage and handling of materials, the management and disposal of solid
wastes and emissions or discharges from its operations.  The Company believes
that its current operations are in material compliance with all currently
applicable environmental laws and regulations.  There are no current legal
proceedings or expenditures for environmental compliance which would at present
have an expected material adverse effect on the Company.

Employees

As of April 4, 1997, the Company had 211 employees.



                             4
<PAGE>
 
ITEM 2.    PROPERTIES

The Company owns a 52,000 square foot corporate headquarters and manufacturing
facility in Oakdale, Pennsylvania near Pittsburgh.  Manufacturing and related
support departments occupy approximately 26,000 square feet in this facility,
with the remaining 26,000 square feet devoted to research and development,
engineering, sales and administration.  The Company also owns a 25,000 square
foot manufacturing, service and distribution facility approximately 1/8th of a
mile from its corporate headquarters, in which metalworking, service and repair,
warehousing and shipping and receiving operations are located.

The Company leases a facility in Cheswick, Pa. where its portable Mass
Spectrometry operations are located.  Manufacturing and research and development
departments occupy approximately 3,200 square feet.

ITEM 3.   LEGAL PROCEEDINGS
 
There are currently no outstanding or pending material legal proceedings with
respect to the Company or its business.

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

No matters were submitted to a vote of the Company's security holders during the
fourth quarter of Fiscal year 1996.

ITEM 4A.  EXECUTIVE OFFICERS OF THE REGISTRANT

The names, ages, positions and areas of responsibility of the executive officers
of the Registrant as of January 25, 1997, are listed below:

Kent D. McElhattan, age 48, has been a Director, President and Chief Executive
Officer of the Company since January, 1985.  Prior to 1985, he was Vice
President and General Manager of the Industrial Safety Division of National Mine
Service Company, the predecessor to the Company.

James P. Hart, age 42, has been Vice President and Chief Financial Officer since
August 1994.  Between 1985 and August 1994 he was Treasurer and Corporate
Controller.  Prior to 1985, he was Controller of the Industrial Safety Division
of National Mine Service Company, the predecessor to the Company.

Garth F. Miller, age 40, has been Vice President of Sales and Service since
August 1994.  Between 1985 and August 1994 he was Manager of Sales and Manager
of Engineering.  Prior to 1985, he was Sales Engineer of the Industrial Safety
Division of National Mine Service Company, the predecessor to the Company.

                               5
<PAGE>
 
Part II
- -------



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

The information required by this item is set forth on page 21 of the 1996 Annual
Report to Shareholders under the caption "Market for the Company's Common Stock"
and is incorporated herein by reference.


ITEM 6.   SELECTED FINANCIAL DATA

The information required by this item is set forth on page 3 of the Company's
1996 Annual Report to Shareholders under the caption "Selected Financial Data"
and is incorporated herein by reference.


ITEM 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
          CONDITION AND RESULTS OF OPERATIONS
 
The information required by this item is set forth on pages 8 through 9 of the
Company's 1996 Annual Report to Shareholders and is incorporated herein by
reference.


ITEM 8.   FINANCIAL STATEMENTS

The Company's consolidated financial statements, the notes thereto and the
report of the independent accountants are set forth on pages 10 through 20 of
the Company's 1996 Annual Report and are incorporated herein by reference.



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

Not applicable.



                            6
<PAGE>
 
                                     PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

The information regarding Directors is contained under the caption "Elections Of
Directors" of the Registrant's definitive Proxy Statement for the Annual Meeting
of shareholders on June 11, 1997 (the Proxy Statement) and is incorporated
herein by reference.


The information regarding executive officers is set forth in Part 1, Item 4A
under "Executive Officers of the Registrant."  Item 405 of Regulation S-K calls
for disclosure of any known late filings or failure by an insider to file a
report required by Section 16 of the Exchange Act.  The information with respect
to this item is contained under caption "Section 16(a) Beneficial Ownership
Reporting Compliance" of the Proxy Statement and is incorporated herein by
reference.


ITEM 11.  EXECUTIVE COMPENSATION

The information required by this item is contained under the caption "Executive
Compensation" of the Proxy Statement and is incorporated by reference.


ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
          AND MANAGEMENT

The information required by this item is contained under the caption
"Beneficial Ownership Of Equity Securities" of the Proxy Statement and is
incorporated herein by reference.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

The information required by this item is contained under the caption "Certain
Relationships And Related Transactions" of the Proxy Statement and is
incorporated herein by reference.



                             7
<PAGE>
 
                         PART IV



ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND
          REPORTS ON FORM 8-K
 
(a)  1. Financial Statements:  The following consolidated financial statements
of the registrant are filed pursuant to Item 8 of this form 10-K and are
incorporated herein by reference to the page numbers indicated below in the 1996
Annual Report to Shareholders which accompanies this report.
<TABLE>
<CAPTION>
 
Description                                                                   Page No.
- -----------                                                                   --------
<S>                                                                           <C>
 
Consolidated Statement of Income  -  Fiscal Years Ended
January 25, 1997, January 27, 1996, and January 28, 1995                            10
 
Consolidated Statement of Changes in Shareholders' Equity  -  Fiscal Years
Ended January 25, 1997, January 27, 1996, and January 28, 1995                      10
 
Consolidated Balance Sheet - January 25, 1997, and January 27, 1996                 11
 
Consolidated Statement of Cash Flows  -  Fiscal Years Ended
January 25, 1997, January 27, 1996, and January 28, 1995                            12
 
Notes to Consolidated Financial Statements                                          13
 
Report of Independent Accountants                                                   20
</TABLE>

2.  Financial Statement Schedules:  Financial statement schedules have been
omitted for the reason that the information is not required or is otherwise
given in the consolidated financial statements and notes thereto.

3.  Exhibits:

<TABLE>
<CAPTION>
 
 
Exhibit No.
- -----------
<S>             <C>                                            <C>               
3.01            Amended and Restated Articles of             Incorporated herein by reference in
                Incorporation of Industrial Scientific       Exhibit 3.01 to Registration
                Corporation                                  Statement No. 33-63182 on Form S-1.


3.02            By-laws of the Company                       Incorporated herein by reference is
                                                             Exhibit 3.02 to the Form S-1.
 
</TABLE>

                              8
<PAGE>
 
<TABLE>
<CAPTION>
 
 
<S>             <C>                                            <C> 
 4.01           Form of Stock Certificate                      Incorporated herein by reference is
                                                               Exhibit 4.01 to the Form S-1.
 
10.01        *  Employment Agreement, dated January            Incorporated herein by reference is 
                25, 1985, between the Company and              Exhibit 10.01 to the Form S-1.
                Kent D. McElhattan
 
10.02        *  Employment Agreement, dated January            Incorporated herein by reference is
                25, 1985, between the Company and              Exhibit 10.02 to the Form S-1.
                James P. Hart
 
10.03        *  1993 Stock Option Plan                         Incorporated herein by reference is
                                                               Exhibit 10.03 to the Form S-1.
                                                           
 
10.04           PEDFA Loan Documents dated as of               Incorporated herein by reference is
                February 1, 1993, relating to the              Exhibit 10.04 to the Form S-1.
                $4,200,000 PEDFA bond financing
 
10.05           Documents relating to the $2,000,000           Incorporated herein by reference is
                PIDA financing                                 Exhibit 10.05 to the Form S-1.

10.06           License Agreement relating to toxic            Incorporated herein by reference is
                gas sensor technology dated as of              Exhibit 10.06 to the Form S-1.
                November 19, 1991

10.07           Distribution Agreement between the             Incorporated herein by reference is
                Company and Vallen Safety Supply as            Exhibit 10.07 to the Form S-1.
                amended as of November 17, 1989
 
10.08           Resolutions of the Board of Directors          Incorporated herein by reference is
                from a meeting held on August 10,              Exhibit 10.08 to the 1995 Form 10-K.
                1988, as amended on March 10, 1993
                and June 8, 1994, setting forth the terms
                of the President's Incentive Plan
 
10.09           Unanimous Consent of the Board of              Incorporated herein by reference is
                Directors dated April 14, 1992, as             Exhibit 10.09 to the 1995 Form 10-K.
                amended on January 27, 1995, setting
                forth the terms of the Key Managers'
                Performance Incentive Plan
</TABLE>

*  -  Indicates management contract or compensatory plan, contract or 
      arrangement.

                                9
<PAGE>
 
<TABLE>
<CAPTION>
 
 
<S>             <C>                                            <C> 
10.10        *  Employment Agreement, dated January            Incorporated herein by reference is
                25, 1985, between the Company and              Exhibit 10.10 to the 1995 Form 10-K.
                Garth F. Miller

13.01           1996 Annual Report to Shareholders             Filed herewith.


21.01           List of Subsidiaries of the Company            Incorporated herein by reference is
                                                               Exhibit 21.01 to the Form S-1.
 
23.01           Consent of Independent Certified               Filed herewith.
                Public Accountants
 
27.01           Financial Data Schedule                        Filed herewith.
 
</TABLE>
b)  Reports on Form 8-K:  No reports on Form 8-K were filed by the Company
    during the fiscal year ended January 25, 1997.



*  -  Indicates management contract or compensatory plan, contract or
      arrangement.



                               10
<PAGE>
 
                                  SIGNATURES



Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

               INDUSTRIAL SCIENTIFIC CORPORATION AND SUBSIDIARIES


April 23, 1997                           /s/ Kent D. McElhattan
                             _____________________________________________
                                            Kent D. McElhattan
                                   President and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this report has been
signed below by the following persons on behalf of the Registrant and in the
capacities on the dates indicated.

Signature                       Title                          Date
- ---------                       -----                          ----

 
/s/  Kenton E. McElhattan       Director and                   April 23, 1997
- ---------------------------     Chairman of the Board                    
Kenton E. McElhattan        


/s/  Kent D. McElhattan         President, Chief               April 23, 1997
- ----------------------------    Executive Officer, Director                 
Kent D. McElhattan          

 
 
/s/  James P. Hart              Vice President and             April 23, 1997
- -------------------------       Chief Financial Officer
James P. Hart              
 
/s/  Herbert F. Gerhard         Director                       April 23, 1997
- -------------------------
Herbert F. Gerhard
 
/s/  Donald J. McGraw           Director                       April 23, 1997 
- -------------------------
Donald J. McGraw
 
/s/  James D. Morton            Director                       April 23, 1997
- ----------------------------                                         
James D. Morton


                              11
<PAGE>

                                 EXHIBIT INDEX
<TABLE>
<CAPTION>

Exhibit Number                                                 Sequential Page Number or Reference
- --------------                                                 -----------------------------------
<S>             <C>                                            <C>               
 3.01           Amended and Restated Articles of               Incorporated herein by reference in
                Incorporation of Industrial Scientific         Exhibit 3.01 to Registration
                Corporation                                    Statement No. 33-63182 on Form S-1.


 3.02           By-laws of the Company                         Incorporated herein by reference is
                                                               Exhibit 3.02 to the Form S-1.
 
 4.01           Form of Stock Certificate                      Incorporated herein by reference is
                                                               Exhibit 4.01 to the Form S-1.
 
10.01        *  Employment Agreement, dated January            Incorporated herein by reference is 
                25, 1985, between the Company and              Exhibit 10.01 to the Form S-1.
                Kent D. McElhattan
 
10.02        *  Employment Agreement, dated January            Incorporated herein by reference is
                25, 1985, between the Company and              Exhibit 10.02 to the Form S-1.
                James P. Hart
 
10.03        *  1993 Stock Option Plan                         Incorporated herein by reference is
                                                               Exhibit 10.03 to the Form S-1.
                                                           
 
10.04           PEDFA Loan Documents dated as of               Incorporated herein by reference is
                February 1, 1993, relating to the              Exhibit 10.04 to the Form S-1.
                $4,200,000 PEDFA bond financing
 
10.05           Documents relating to the $2,000,000           Incorporated herein by reference is
                PIDA financing                                 Exhibit 10.05 to the Form S-1.

10.06           License Agreement relating to toxic            Incorporated herein by reference is
                gas sensor technology dated as of              Exhibit 10.06 to the Form S-1.
                November 19, 1991

10.07           Distribution Agreement between the             Incorporated herein by reference is
                Company and Vallen Safety Supply as            Exhibit 10.07 to the Form S-1.
                amended as of November 17, 1989

</TABLE>

*  -  Indicates management contract or compensatory plan, contract or 
      arrangement.
                                      12
<PAGE>
 
<TABLE>
<CAPTION>

Exhibit Number                                                 Sequential Page Number or Reference
- --------------                                                 -----------------------------------
<S>             <C>                                            <C>
10.08           Resolutions of the Board of Directors          Incorporated herein by reference is
                from a meeting held on August 10,              Exhibit 10.08 to the 1995 Form 10-K.
                1988, as amended on March 10, 1993
                and June 8, 1994, setting forth the terms
                of the President's Incentive Plan
 
10.09           Unanimous Consent of the Board of              Incorporated herein by reference is
                Directors dated April 14, 1992, as             Exhibit 10.09 to the 1995 Form 10-K.
                amended on January 27, 1995, setting
                forth the terms of the Key Managers'
                Performance Incentive Plan

10.10        *  Employment Agreement, dated January            Incorporated herein by reference is
                25, 1985, between the Company and              Exhibit 10.10 to the 1995 Form 10-K.
                Garth F. Miller

13.01           1996 Annual Report to Shareholders             Filed herewith.


21.01           List of Subsidiaries of the Company            Incorporated herein by reference is
                                                               Exhibit 21.01 to the Form S-1.
 
23.01           Consent of Independent Certified               Filed herewith.
                Public Accountants
 
27.01           Financial Data Schedule                        Filed herewith.
 
</TABLE>

*  -  Indicates management contract or compensatory plan, contract or
      arrangement.

                               13

<PAGE>
                                                                   EXHIBIT 13.01


                      1996 Annual Report to Shareholders


     Industrial Scientific Corporation
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

     Selected Financial Data                                                                                            
   --------------------------------------------------------------------------------------------------------------------------
     Fiscal Year                                      1991        1992          1993         1994          1995         1996  
     <S>                                           <C>         <C>            <C>          <C>           <C>          <C>  
   --------------------------------------------------------------------------------------------------------------------------
     Amounts in thousands except per share data                                                                              
   --------------------------------------------------------------------------------------------------------------------------
     NET SALES                                     $20,012     $24,059        $30,891      $31,421       $34,133      $36,648
   --------------------------------------------------------------------------------------------------------------------------
     GROSS PROFIT                                   10,221      12,257         16,791       17,020        18,191       19,815
   --------------------------------------------------------------------------------------------------------------------------
     NET INCOME                                      2,190       2,594          4,449        4,227         4,067        3,725
   --------------------------------------------------------------------------------------------------------------------------
     NET INCOME PER SHARE                              .73         .86           1.38         1.25          1.20         1.10
   --------------------------------------------------------------------------------------------------------------------------
     SHAREHOLDERS' EQUITY                            6,831       9,424         19,276       23,504        27,571       31,117
   --------------------------------------------------------------------------------------------------------------------------
     LONG TERM OBLIGATIONS                           5,928       6,000          5,617        5,073         4,512        4,143
   --------------------------------------------------------------------------------------------------------------------------
     TOTAL ASSETS                                   16,111      18,906         28,897       32,213        35,479       39,218 
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

[GRAPH OF NET SALES APPEARS HERE]

[GRAPH OF GROSS PROFIT APPEARS HERE]

[GRAPH OF NET INCOME APPEARS HERE]

[GRAPH OF SHAREHOLDERS' EQUITY APPEARS HERE]

Each of the foregoing graphs depicts in bar chart format the referenced line 
items (in millions of dollars) for fiscal years 1991 thru 1996.
- --------------------------------------------------------------------------------

<PAGE>
Management's Discussion and Analysis of Results of Operations and 
Financial Condition
- --------------------------------------------------------------------------------

RESULTS OF OPERATIONS
FISCAL YEAR 1996 COMPARED TO FISCAL YEAR 1995

Net Sales

     Net sales for fiscal year 1996, ended January 25, 1997, were $36.6 million
and were $2.5 million or 7.4% higher than net sales of $34.1 million for fiscal
year 1995, ended January 27, 1996. Increased international sales resulting from
increased marketing efforts, particularly in the Middle East, were the primary
reason for this increase. Increased sales of replacement parts and repair
services resulting from increased promotion of these offerings also contributed
to the overall increase.

Gross Profit

     Gross profit increased $1.6 million or 8.9% to $19.8 million for fiscal
1996 compared to $18.2 million for 1995. Gross profit as a percent of net sales
increased to 54.1% in 1996 compared to 53.3% in 1995. Increased manufacturing
efficiency resulting from investments in labor saving capital equipment was the
principal cause of this increase. Increased competition continues to put
downward pressure on prices. The Company intends to continue to invest in new
product development and cost saving capital equipment to maintain adequate
profit margins.

Operating Expenses

     Selling expenses increased $934,000 or 14.1% to $7.6 million in 1996
compared to $6.6 million in 1995, due to higher costs incurred in introducing
the Company's products outside North America, principally in Saudi Arabia and
Australia, and continuing to establish an international distribution and
service network.

     Research, development and engineering expense totaled $4.0 million in 1996
compared to $3.0 million in 1995, an increase of $1.0 million or 40.9%.
Increased expense incurred in the ongoing commercial development of the MG2100
portable mass spectrometer is the principal cause of this increase, while new
product development for gas monitoring instruments also contributed. In March
1997, the Company announced that it had signed a letter of intent to sell
Monitor Group, the division responsible for the commercial development of the
MG2100. The sale is expected to be completed in the first quarter 1997. The sale
of this division should reduce research, development and engineering expense for
1997.

     Administrative expense increased $190,000 or 6.4% to $3.1 million in 1996
compared to $3.0 million in 1995. Increased profit sharing expense relating to
greater participation by employees is the principal cause.

Other Income and Expense

     The Company incurred a loss on its investment in Industrial Scientific
Arabia, Ltd., resulting from start up expenses, and slower than anticipated
growth in service revenue.

     Interest income decreased to $777,000 in 1996 compared to $837,000 in 1995.
A greater portion of investments were in tax free instruments which yield a
higher after tax return, but a generally lower coupon rate.

     Interest expense decreased due to reduced principal balances resulting
from principal payments during the year.

Provision for Income Taxes

     The Company's effective tax rate for 1996 was 33.5% compared to 33.8% for
1995. Increased tax free interest income, partially offset by a reduction in the
utilization of the research and experimentation credit, account for this
decline. The principal difference between the effective tax rate and the federal
statutory rate of 34% was the effect of state income taxes, offset by the
research and experimentation credit, non-taxable interest income, and foreign
sales tax credits.

RESULTS OF OPERATIONS
FISCAL YEAR 1995 COMPARED TO FISCAL YEAR 1994

Net Sales

     Net sales for fiscal year 1995, ended January 27, 1996, were $34.1 million
and were $2.7 million or 8.6% higher than net sales of $31.4 million for fiscal
year 1994, ended January 28, 1995. Increased marketing efforts resulting from
the additional field sales staff added in North America at the beginning of FY
1995, increased sales efforts internationally, and the contribution of new
products such as GasBadge,(TM) were the primary reasons for the increase. Sales
of instruments and accessories, spare parts, and repair services all increased
during the year.














Gross Profit

     Gross profit increased $1.2 million or 6.9% to $18.2 million for fiscal
1995 compared to $17.0 million for 1994. Gross profit as a percent of net sales
declined to 53.3% in 1995 compared to 54.2% in 1994. Selective price discounting
in competitive situations and increased manufacturing costs were the principal
causes of this modest decline.

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

                                       8

<PAGE>
Operating Expenses

     Selling expenses increased $1.4 million or 27.9% to $6.6 million in 1995
compared to $5.2 million in 1994, due to increased costs relating to the
additional field sales staff hired during the first quarter of 1995, and higher
travel and promotional costs incurred in introducing the Company's products
outside North America and establishing an international distribution and service
network.

     Research, development and engineering expense totaled $2.8 million in 1995
compared to $2.2 million in 1994, an increase of $624,000 or 28.1%. Expenses
incurred in the ongoing commercial development of the MG2100 portable mass
spectrometer, and intensified new product development for gas monitoring
instruments were the principal reasons for the increase.

     Administrative expense decreased $164,000 or 4.9% to $3.2 million in 1995
compared to $3.3 million in 1994. A decrease in the Company's discretionary
contribution to the employee profit sharing plan, partially offset by increased
amortization expense relating to the intangible assets purchased as part of the
Monitor Group acquisition, principally account for this decrease.

Other Income and Expense

     Interest income increased to $837,000 in 1995 compared to $557,000 in 1994,
due to generally higher short-term interest rates, and a higher average invested
cash balance.

     Interest expense decreased slightly as reduced principal balances were
partially offset by higher variable interest rates.

Provision for Income Taxes

     The Company's effective tax rate for 1995 was 33.8% compared to 36.0% for
1994. Increased research and experimentation credits and increased tax free
interest income account for this decline. The principal difference between the
effective tax rate and the federal statutory rate of 34% was the effect of state
income taxes, offset by the research and experimentation credit, non-taxable
interest income, and foreign sales tax credits.

<TABLE> 
<CAPTION> 

LIQUIDITY AND CAPITAL RESOURCES

                                                January 25, 1997                January 27, 1996
- ------------------------------------------------------------------------------------------------
<S>                                             <C>                             <C> 
Current Assets                                       $28,064,000                     $23,764,000
Current Liabilities                                    3,866,000                       3,187,000
                                                     -----------                     -----------
Working Capital                                      $24,198,000                     $20,577,000
                                                     ===========                     ===========
- ------------------------------------------------------------------------------------------------
</TABLE> 

     The Company's working capital position was $24.2 million at January 25,
1997, compared to $20.6 million at January 27, 1996, an increase of $3.5
million. Cash flow from operations totaled $6.3 million in 1996 compared to $3.6
million in 1995. Capital investments totaled $1.2 million in 1996 and included
the acquisition of the Systems Division of McNeill International and the
formation of Industrial Scientific Arabia, Ltd. The remaining portion of the
capital investments were used to acquire production tooling related to new
products and computer hardware and software to support the Company's growing
operations.

     The acquisition of Monitor Group for $2.5 million was completed during the
second quarter 1995. In March 1997, the Company announced its intention to sell
Monitor Group and signed a letter of intent with L.B. Foster Company for such
sale.

     The Company's cash flow and current capital structure provide adequate
flexibility for the growth of its operations and the funding of capital spending
programs.

ACCOUNTING RULE CHANGES

     In February 1997, the Financial Accounting Standards Board issued SFAS No.
128, "Earnings Per Share." The standard is effective for fiscal 1997. SFAS No.
128 specifies the computation, presentation and disclosure requirements for
earnings per share. The Company does not believe that the effect of this
statement will be material to the financial statements.

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

                                       9

<PAGE>

                       INDUSTRIAL SCIENTIFIC CORPORATION

<TABLE>
<CAPTION>

     Consolidated Statement of Income
- -------------------------------------------------------------------------------------------------------------------------
     Fiscal Year Ended                              January 25, 1997       January 27, 1996        January 28, 1995
     --------------------------------------------------------------------------------------------------------------
     <S>                                                <C>                    <C>                    <C>   
      Net sales (Note 11)                                $36,647,770            $34,133,275            $31,420,629
      Cost of goods sold                                  16,832,999             15,941,791             14,401,004
                                                         -----------            -----------            -----------
              Gross profit                                19,814,771             18,191,484             17,019,625
                                                         -----------            -----------            -----------
      Operating expenses:                                                                              
         Selling                                           7,578,677              6,644,381              5,193,052
         Research, development and engineering             4,006,508              3,043,702              2,218,686
         Administrative                                    3,142,418              2,952,134              3,316,455
                                                         -----------            -----------            -----------
                                                          14,727,603             12,640,217             10,728,193
                                                         -----------            -----------            -----------
              Operating profit                             5,087,168              5,551,267              6,291,432
      Interest income                                        777,256                836,832                557,065
      Interest expense                                      (190,312)              (247,428)              (249,122)
      Other (expense) income                                 (69,150)                   908                  5,355
                                                         -----------            -----------            -----------
              Income before income taxes                   5,604,962              6,141,579              6,604,730
      Provision for income taxes (Note 9)                  1,880,000              2,075,000              2,378,000
                                                         -----------            -----------            -----------
              Net income                                 $ 3,724,962            $ 4,066,579            $ 4,226,730
                                                         ===========            ===========            ===========
      Net income per common share                        $      1.10            $      1.20            $      1.25
                                                         ===========            ===========            ===========
      Weighted average number of common and                                                            
          common equivalent shares outstanding             3,375,319              3,383,645              3,390,197
                                                         ===========            ===========            ===========
     --------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>

Consolidated Statement of Changes in Shareholders' Equity                                                                  
- ---------------------------------------------------------------------------------------------------------------------------------
                                              Common Stock                                                              
                              ---------------------------------------------
                                     Issued                In Treasury           Additional                        Total     
                              ---------------------------------------------       Paid-in        Retained       Shareholders'
                               Shares      Amount      Shares        Amount       Capital        Earnings          Equity
     -----------------------------------------------------------------------------------------------------------------------
     <S>                      <C>       <C>         <C>           <C>            <C>            <C>             <C>
     Balance at
       January 29, 1994       3,375,000 $   33,750       -             -         $5,469,879     $13,772,640     $ 19,276,269
     
     Net income-1994               -          -          -             -               -          4,226,730        4,226,730
       Exercise of stock
       options-1994
       (Note 13)                     87          1       -             -              1,391            -               1,392
                              --------- ----------  ---------     ---------      ----------     -----------     ------------
     Balance at
       January 28, 1995       3,375,087     33,751       -             -          5,471,270      17,999,370       23,504,391
     
     Net income-1995               -          -          -             -               -          4,066,579        4,066,579
                              --------- ----------  ---------     ---------      ----------     -----------     ------------
     
     Balance at
       January 27, 1996       3,375,087     33,751       -             -          5,471,270      22,065,949       27,570,970
     
     Purchase of treasury                                                                                         
       stock-1996
       (Note 13)                   -          -        11,800      (178,663)           -               -            (178,663)
     
     Net income-1996               -          -          -             -               -          3,724,963        3,724,963
                              --------- ----------  ---------     ---------      ----------     -----------     ------------
     
     Balance at
       January 25, 1997       3,375,087 $   33,751     11,800     $(178,663)     $5,471,270     $25,790,912     $ 31,117,270
                              ========= ==========  =========     =========      ==========     ===========     ============
</TABLE>

The accompanying notes are an integral part of these consolidated financial
statements.
- --------------------------------------------------------------------------------

                                       10
 
<PAGE>

                       INDUSTRIAL SCIENTIFIC CORPORATION



<TABLE>
<CAPTION>

   Consolidated Balance Sheet
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                        January 25, 1997      January 27, 1996 
   ---------------------------------------------------------------------------------------------------------------------------
   <S>                                                                                  <C>                   <C>
   ASSETS         Current assets:                                                     
                    Cash and cash equivalents                                               $  6,879,111           $ 7,335,292
                    Short-term investments (Notes 4 and 15)                                   12,379,680             7,815,736
                                                                                            ------------           -----------
                                                                                              19,258,791            15,151,028
                    Accounts receivable, less allowance of $55,000 in 1996              
                      and $15,000 in 1995                                                      4,791,000             4,394,799
                    Inventories (Note 5)                                                       3,159,519             3,503,814
                    Prepaid expenses and other assets                                            334,795               311,401
                    Deferred income taxes (Note 9)                                               519,903               252,546
                    Assets held by trustee                                                          --                 150,000
                                                                                            ------------           -----------
                            Total current assets                                              28,064,008            23,763,588
                                                                                            ------------           -----------
                    Long-term investments (Notes 4 and 15)                                     1,070,849               928,610
                    Property, plant and equipment, at cost:                         
                      Building and improvements                                                7,421,444             7,421,444
                      Machinery and equipment                                                  4,251,821             3,926,608
                      Computers, furniture and fixtures                                        1,922,898             1,594,897
                                                                                            ------------           -----------
                                                                                              13,596,163            12,942,949
                      Less accumulated depreciation and amortization                           6,217,653             4,744,963
                                                                                            ------------           -----------
                                                                                               7,378,510             8,197,986
                      Land                                                                       390,000               390,000
                                                                                            ------------           -----------
                                                                                               7,768,510             8,587,986
                      Other assets (Notes 3 and 6)                                             2,314,773             2,199,272
                                                                                            ------------           -----------
                            Total assets                                                    $ 39,218,140           $35,479,456
                                                                                            ============           ===========
   ---------------------------------------------------------------------------------------------------------------------------
   LIABILITIES    Current liabilities:                                                  
   AND              Accounts payable                                                        $    908,931           $   991,935
   SHAREHOLDERS'    Accrued expenses:                                                   
   EQUITY             Payroll and related items                                                  702,008               564,657
                      Compensated absences                                                       294,789               146,118
                      Warranty expenses                                                          583,350               298,789
                      Other accrued expenses                                                     950,583               268,217
                    Income taxes payable                                                          57,003               303,892
                    Current portion of term debt (Note 7)                                        369,739               613,071
                                                                                            ------------           -----------
                            Total current liabilities                                          3,866,403             3,186,679
                    Term debt (Note 7)                                                         4,142,593             4,512,332
                    Deferred income taxes (Note 9)                                                91,874               209,475
                                                                                            ------------           -----------
                            Total liabilities                                                  8,100,870             7,908,486
                    Commitments and contingencies (Notes 7 and 8)                       
                    Shareholders' equity:                                               
                      Preferred stock, without par value;                               
                         authorized 1,000,000 shares; none issued                                   --                    --
                      Common stock, $.01 par value; authorized                            
                         15,000,000 shares; 3,375,087 shares issued at              
                         January 25, 1997 and January 27, 1996                                    33,751                33,751
                      Additional paid-in capital                                               5,471,270             5,471,270
                      Retained earnings                                                       25,790,912            22,065,949
                                                                                            ------------           -----------
                      Treasury stock (11,800 shares), at cost (Note 13)                         (178,663)                 --
                                                                                            ------------           -----------
                                Total shareholders' equity                                    31,117,270            27,570,970
                                                                                            ------------           -----------
                                Total liabilities and shareholders' equity                   $39,218,140           $35,479,456
                                                                                            ============           ===========
    The accompanying notes are an integral part of these consolidated financial statements.
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>


                                       11
                                                                                
<PAGE>

                       INDUSTRIAL SCIENTIFIC CORPORATION

<TABLE>
<CAPTION>

Consolidated Statement of Cash Flows
- --------------------------------------------------------------------------------------------------------------------------------
       Fiscal Year Ended                                           January 25, 1997       January 27, 1996      January 28, 1995
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                                                <C>                    <C>                   <C>  
  CASH FLOWS FROM OPERATING ACTIVITIES:
    Net income                                                         $  3,724,963           $  4,066,579           $ 4,226,730
    Adjustments to reconcile net income to net cash provided
         by operating activities:
       Depreciation and amortization                                      2,000,440              1,523,096             1,245,566
       Deferred income taxes                                               (384,958)               (42,771)               (5,202)
       Loss on equity investment                                             69,150                   --                    --
       Changes in operating assets and liabilities:
         (Increase) decrease in accounts and note receivable               (396,201)            (1,179,569)              571,146
         (Increase) decrease in prepaid expenses and other assets           (23,394)                76,681              (215,748)
         Decrease (increase) in inventories                                 344,295               (817,213)                9,960
         Increase (decrease) in accounts payables and accrued expenses    1,169,945               (379,320)             (249,964)
         (Decrease) increase in income taxes payable                       (246,889)               288,232              (231,409)
                                                                       ------------           ------------           -----------
            Net cash provided by operating activities                     6,257,351              3,535,715             5,351,079
                                                                       ------------           ------------           -----------
  CASH FLOWS FROM INVESTING ACTIVITIES:
    Capital expenditures                                                   (653,214)            (1,097,664)           (1,087,817)
    Acquisition of business                                                (310,000)            (2,500,000)                 --
    Increase in equity investment                                          (235,150)                  --                    --
    Proceeds from maturities of investments                               7,801,000             15,295,000             3,500,000
    Purchase of investments                                             (12,674,434)           (15,229,061)           (7,790,953)
                                                                       ------------           ------------           -----------
            Net cash used in investing activities                        (6,071,798)            (3,531,725)           (5,378,770)
                                                                       ------------           ------------           -----------
  CASH FLOWS FROM FINANCING ACTIVITIES:
  Purchase of treasury stock                                               (178,663)                  --                    --
    Proceeds from exercise of stock options                                    --                     --                   1,392
    Principal payments on debt                                             (613,071)              (636,894)             (387,827)
                                                                       ------------           ------------           -----------
         Net cash used in financing activities                             (791,734)              (636,894)             (386,435)
                                                                       ------------           ------------           -----------
  Net decrease in cash and cash equivalents                                (606,181)              (632,904)             (414,126)

  Cash and cash equivalents at beginning of year                          7,485,292              8,118,196             8,532,322
                                                                       ------------           ------------           -----------
  Cash and cash equivalents at end of year
    (including $150,000 and $343,578 of cash held by
    trustee at January 27, 1996 and January 28, 1995)                  $  6,879,111           $  7,485,292           $ 8,118,196
                                                                       ============           ============           ===========
  SUPPLEMENTAL DISCLOSURE OF
  CASH FLOW INFORMATION:
    Cash paid during the year for:
      Interest                                                         $    191,493           $    247,428           $   249,122
      Taxes                                                               2,511,889              1,829,768             2,445,295
</TABLE> 

The accompanying notes are an integral part of these consolidated financial 
statements.

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

                                      12
<PAGE>
 
Notes to Consolidated financial Statements
- --------------------------------------------------------------------------------
1. BUSINESS DESCRIPTION:

Industrial Scientific Corporation (the Company) designs, manufactures and sells
gas monitoring instruments, systems and other related products.

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

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

Principles of Consolidation:

The consolidated financial statements include the accounts of the Company and
its wholly-owned subsidiaries, Industrial Scientific Devices, Inc., a Foreign
Sales Corporation (FSC), Industrial Scientific Pty., and Industrial Scientific
of Delaware, Inc., an investment holding corporation. All material intercompany
accounts and transactions have been eliminated. The Company accounts for its
investment in Industrial Scientific Arabia Limited using the equity method of
accounting.

Fiscal Year:

The Company's fiscal year ends on the last Saturday of January. 
Fiscal year 1996 had 52 weeks and ended on January 25, 1997. 
Fiscal year 1995 had 52 weeks and ended on January 27, 1996. 
Fiscal year 1994 had 52 weeks and ended on January 28, 1995.

Use of Estimates:

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 and disclosure of
contingent assets and liabilities at the dates of the financial statements and
the reported amounts of revenues and expenses during the reporting periods.
Actual results could differ from those estimates.

Cash and Cash Equivalents:

The Company considers all highly liquid instruments purchased with a maturity of
three months or less to be cash equivalents. The Company maintains cash and cash
equivalents with various financial institutions in excess of the amount insured
by the Federal Deposit Insurance Corporation. Management believes the credit
risk related to these cash and cash equivalents is minimal.

Inventories:

Inventories are stated at the lower of cost or market. Cost is determined on the
last-in, first-out (LIFO) basis.

Property, Plant and Equipment:

Depreciation is computed using the straight-line method based on the estimated
useful lives of the assets. The cost of maintenance and repairs is charged to
income as incurred. Renewals and betterments of a nature considered to
significantly extend the useful lives of the assets are capitalized. When
property is retired or otherwise disposed of, the asset and accumulated
depreciation are removed from the accounts and the resulting profit or loss is
reflected in income.

Other Assets:

Other assets include patents, drawings, kits, trade names and the excess of
purchase price over net tangible assets of business acquired. The Company's
policy is to amortize these intangibles on a straight-line basis for periods
ranging from 3 to 17 years. The carrying value of intangibles is evaluated
periodically in relation to operating performance and future undiscounted cash
flows of the underlying business. Adjustments are made if the sum of expected
future net cash flows is less than book value (refer to Note 6).

Product Warranty:

The Company provides a reserve for estimated future warranty expenses on sales
of manufactured products on the basis of prior experience.

Deferred Income Taxes:

Deferred income taxes are recorded using the liability method. Under this
method, deferred tax liabilities and assets are provided for the differences
between the financial statement and the tax basis of assets and liabilities
using enacted tax rates in effect for the years in which the differences are
expected to reverse.

Net Income Per Common Share:

Net income per common share is computed by dividing net income by the weighted
average number of common shares outstanding and common stock equivalents which
would result from the exercise of stock options.  
- --------------------------------------------------------------------------------
                                      13
<PAGE>
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (continued)

Revenue Recognition:

The Company recognizes revenue from product sales upon shipment to the customer.
Revenues from repairs and servicing of instruments are recognized when performed
and returned to the customer. The Company records revenue from maintenance
contracts as earned over the term of the contract.

Research and Development Costs:

Research and development costs are expensed as incurred and approximated
$3,062,000 in fiscal 1996, $2,376,000 in fiscal 1995 and $1,962,000 in fiscal
1994.

Reclassifications:

Certain amounts in the 1995 financial statements have been reclassified to
conform to the 1996 presentation.
- --------------------------------------------------------------------------------

3. ACQUISITIONS AND DISPOSITIONS:

In February 1996, the Company invested $267,000 for a 49% interest in Industrial
Scientific Arabia, Ltd. This investment is accounted for using the equity method
of accounting.

In October 1996, the Company acquired McNeill International's Systems Division.
The acquisition was accounted for as a purchase and, accordingly, the purchase
price has been allocated to the respective assets acquired based on their
estimated fair market values as of the date of the acquisition. The acquisition
resulted in intangible assets of $310,000 consisting principally of drawings,
kits and software. These assets are being amortized on a straight-line basis
over their estimated useful lives of five years. Operating results of this
acquisition have been included in the Consolidated Statement of Income from the
date of the acquisition forward. Pro forma results of the Company, assuming the
acquisition had been made at the beginning of the year would not be materially
different from the results reported.

In June 1995, the Company acquired all of the assets of Monitor Group for $2.5
million in cash. The acquisition was accounted for as a purchase and resulted in
goodwill of $1,000,000 and other intangible assets of $1,400,000 principally
consisting of patents, trade names, software, and drawings. In January 1997, the
Board of Directors adopted a resolution to dispose of the Monitor Group. As of
January 25, 1997, the net book value of the Monitor Group assets amount to
approximately $2,100,000. On March 10, 1997, the Company signed a letter of
intent to sell Monitor Group.
- --------------------------------------------------------------------------------

4. INVESTMENT SECURITIES:

Investments in debt securities were as follows:
<TABLE> 
<CAPTION> 
                                                                    January 25, 1997
                                         -----------------------------------------------------------------
                                                                Gross Unrealized Holding
                                                                ------------------------
                                          Amortized Cost         Gains            Losses        Fair Value
                                          --------------      --------------------------      ------------
   <S>                                    <C>                 <C>             <C>              <C> 
   Less than one year:
     State and political subdivisions      $10,375,554        $151,634        $   (3,750)      $10,523,438
     Corporate                               2,004,126             944                 -         2,005,070
                                           -----------        --------        ----------       -----------
                                           $12,379,680        $152,578        $   (3,750)      $12,528,508
                                           ===========        ========        ==========       ===========
   One to two years:
     State and political subdivisions      $ 1,070,849        $ 71,993                 -       $ 1,142,842
                                           ===========        ========        ==========       ===========
<CAPTION> 
                                                                                                            
                                                                    January 27, 1996
                                          ------------------------------------------------------------------
                                                                Gross Unrealized Holding
                                                                ------------------------
                                          Amortized Cost         Gains             Losses         Fair Value
                                          --------------      ---------------------------       ------------  
   <S>                                    <C>                 <C>               <C>             <C> 
   Less than one year:
      State and political subdivisions    $  6,816,244        $  33,372         $ (19,272)      $  6,830,344
      Corporate                                999,492           18,374                 -          1,017,866
                                          ------------        ---------         ---------       ------------

                                          $  7,815,736        $  51,746         $ (19,272)      $  7,848,210                
                                          ============        =========         =========       ============ 
   One to two years:                  
       State and political subdivisions   $    928,610        $  12,427                 -       $    941,037
                                          ============        =========         =========       ============ 
</TABLE> 

















The Company's investments are in investment grade debt securities that it has
both the intent and ability to hold to maturity and are carried at amortized
cost. Realized and unrealized gains and losses are determined using the specific
identification method.

- --------------------------------------------------------------------------------
                                      14
<PAGE>
5. INVENTORIES:

Inventories consisted of:
<TABLE> 
<CAPTION>                                                                                                   
                                                                  January 25, 1997         January 27, 1996
- -----------------------------------------------------------------------------------------------------------
<S>                                                               <C>                      <C> 
At standard costs, which approximate first-in, first-out cost:                     
   Raw materials                                                        $2,691,313              $2,952,288    
   Work in process                                                         382,616                 366,968   
   Finished goods                                                          244,608                 314,662   
                                                                        ----------              ----------
                                                                         3,318,537               3,633,918
                                                                                                          
   Less LIFO reserve                                                       159,018                 130,104  
                                                                        ----------              ----------
Inventories at LIFO value                                               $3,159,519              $3,503,814
                                                                        ==========              ==========
</TABLE> 
- --------------------------------------------------------------------------------
6. OTHER ASSETS:

Other assets consisted of the following:
<TABLE> 
<CAPTION> 
                                                                  January 25, 1997       January 27, 1996
- ---------------------------------------------------------------------------------------------------------
<S>                                                               <C>                    <C> 
Patents and trade names                                                 $1,050,000             $1,050,000
Goodwill                                                                 1,000,000              1,000,000
Other                                                                      826,000                350,000    
                                                                        ----------             ---------- 
                                                                         2,876,000              2,400,000

Less accumulated amortization                                              561,227                200,728
                                                                        ----------             ----------   
                                                                        $2,314,773             $2,199,272
                                                                        ==========             ==========
</TABLE> 
- --------------------------------------------------------------------------------
7. TERM DEBT:

Term debt consisted of:   
<TABLE> 
<CAPTION> 
                                                                  January 25, 1997        January 27, 1996
- ----------------------------------------------------------------------------------------------------------
<S>                                                               <C>                     <C> 
1991 Pennsylvania Economic Development Financing                       
  Authority (PEDFA) bonds, variable interest rate (interest
  rate at January 25, 1997 is 3.65%), principal payable in
  semi-annual installments of $150,000 through February
1997 and $100,000 thereafter through February 2011. (A)                 $2,900,000              $3,300,000

Pennsylvania Industrial Development Authority (PIDA)
mortgage note, payable in monthly installments of
$11,951, including interest at 3%, through April 2006.                   1,175,230               1,281,654

PIDA mortgage note, payable in monthly installments of
$3,806, including interest at 3%, through April 2002.                      221,417                 259,906

PIDA mortgage note, payable in monthly installments of
$2,109, including interest at 3%, through July 2006.                       208,210                 226,990

Capitalized lease obligations, for computer equipment,                      
payable in monthly installments with effective interest rates
ranging from 9.8% to 11.90%.                                                     -                  48,310

Other                                                                        7,475                   8,543   
                                                                        ----------              ---------- 
                                                                         4,512,332               5,125,403
Less current  portion                                                     (369,739)               (613,071)
                                                                        ----------              ---------- 
                                                                        $4,142,593              $4,512,332
                                                                        ==========              ==========
</TABLE> 
(A) Under the PEDFA debt agreements, tax-exempt bonds are issued which can be
tendered at face value at any time at the option of the holder. The bonds can be
remarketed at the time of such tender The Company is required to maintain a
letter of credit covering the principal and accrued interest on bonds
outstanding. The letter of credit fee is approximately 1/2%. The letter of
credit expires February 2001 and is subject to renewal at that time If future
legislation were to cause the debt to be taxable to the holder, or if the letter
of credit were not renewed, the Company would be required to redeem the bonds.
- --------------------------------------------------------------------------------
                                      15
<PAGE>
 
7. TERM DEBT: (continued)

The aggregate principal amount of the term debt maturing in each of the next
five fiscal years 1997 through 2001, inclusive, is $370,000, $375,000, $380,000,
$385,000 and $391,000, respectively.

The Company's manufacturing and office facilities collateralize the various debt
agreements. The Company is required to meet certain financial covenants in
connection with the above obligations, including those related to current ratio,
ratio of total liabilities to tangible net worth, minimum tangible net worth and
net income. At January 25, 1997, the Company was in compliance with all such
covenants.
- --------------------------------------------------------------------------------
8. OPERATING LEASES:

The Company leases certain vehicles under operating leases. The minimum rentals
under these agreements for succeeding fiscal years are:

<TABLE> 
<CAPTION> 
            <S>                                 <C> 
            1997                                $114,007
            1998                                  56,764
            1999                                   7,115
                                                --------

                  Total                         $177,886
                                                ========
</TABLE> 

The rental expense for these leases and other leases with terms of less than one
year was approximately $305,000, $230,000 and $90,000 in fiscal years 1996, 1995
and 1994, respectively.
- --------------------------------------------------------------------------------
9. INCOME TAXES:

The provision for income taxes consisted of:  

<TABLE> 
<CAPTION> 
                        
                                                               Fiscal Year     
                                 ------------------------------------------------------------------- 
                                     1996                         1995                        1994
                                 -------------------------------------------------------------------
<S>                              <C>                          <C>                         <C> 
Current:                               
      Federal                    $1,878,000                   $1,768,000                  $1,898,000  
      State                         387,000                      350,000                     485,000 
                                 ----------                   ----------                  ----------  
                                  2,265,000                    2,118,000                   2,383,000
Deferred:
      Federal                      (327,000)                     (31,000)                          -  
      State                         (58,000)                     (12,000)                     (5,000)     
                                 ----------                   ----------                  ----------  
                                   (385,000)                     (43,000)                     (5,000)  
                                 ----------                   ----------                  ----------  
       Total                     $1,880,000                   $2,075,000                  $2,378,000 
                                 ==========                   ==========                  ==========
</TABLE> 

A reconciliation of income taxes at the federal statutory rate to the Company's
income tax expense follows:

<TABLE> 
<CAPTION> 
                                                                   Fiscal Year                                
                                -------------------------------------------------------------------------------
                                         1996                         1995                        1994        
                                -------------------------------------------------------------------------------
                                 Amount        Rate           Amount         Rate         Amount         Rate  
<S>                             <C>            <C>           <C>             <C>         <C>             <C> 

 Income taxes at federal
     statutory rate             $1,906,000     34.0%         $2,088,000      34.0%       $2,246,000      34.0%
 State income taxes,
     net of federal income
     tax benefit                   215,000      3.8             227,000       3.7           319,000       4.8
 FSC benefit                       (32,500)     (.6)            (21,000)      (.4)          (70,000)     (1.0)
 Research and
    experimentation
    tax credit                    (100,600)    (1.8)           (145,000)     (2.4)          (34,000)      (.5)
 Non-taxable interest             (152,000)    (2.7)           (106,000)     (1.7)          (83,000)     (1.3)
  Other                             44,100       .8              32,000        .6                 -         -
                                ----------     -----         ----------      -----       ----------      -----
                                $1,880,000     33.5%         $2,075,000      33.8%       $2,378,000      36.0%
                                ==========     =====         ==========      =====       ==========      ===== 
</TABLE> 
- --------------------------------------------------------------------------------
                                      16
<PAGE>
 
9. INCOME TAXES: (continued)

The components of net deferred tax assets and liabilities consisted of:

<TABLE> 
<CAPTION> 
                                         January 25, 1997                January 27, 1996
                                         ----------------                ----------------
<S>                                      <C>                             <C>  
Deferred tax assets: 
Warranty reserve                                 $221,440                        $113,420
Vacation accrual                                   88,589                          43,911
Capitalized inventory costs                        88,353                          89,527
Other                                             121,521                           5,688
                                                ---------                       --------- 
                                                  519,903                         252,546
Deferred tax liabilities:
Depreciation and amortization                     (91,874)                       (209,475)
                                                ---------                       ---------                   

Net deferred tax assets                          $428,029                        $ 43,071
                                                =========                       =========
</TABLE> 
- --------------------------------------------------------------------------------
10. PROFIT-SHARING PLAN:

The Company has a 401(k) profit-sharing plan covering all employees. When
profitable, the Company has committed to match employee salary deferrals at 50%,
up to 6% of eligible employee compensation. In fiscal 1996, 1995 and 1994, the
Company also made additional discretionary contributions, increasing the total
Company match to $1.00 for every $1.00 of employee salary deferrals in 1996 and
1995 and $2.00 for every $1.00 of employee salary deferrals in 1994 (up to the
maximum allowable for tax purposes). Profit-sharing plan expense was comprised
of the following:

<TABLE> 
<CAPTION> 

                                                                         Fiscal Year
                                                        -----------------------------------------------
                                                          1996               1995                1994
                                                        -----------------------------------------------
<S>                                                     <C>                 <C>                <C> 
Employer matching contribution                          $213,000            $184,000           $168,000
Discretionary contribution                               302,000             266,000            550,000
                                                        --------            --------           --------

            Total                                       $515,000            $450,000           $718,000
                                                        ========            ========           ========
</TABLE> 
- --------------------------------------------------------------------------------
11. SIGNIFICANT CUSTOMERS, SUPPLIERS AND EXPORT SALES:

The Company sells its products through independent, strategically-located
distributors and a direct employee sales force mainly throughout the United
States, Canada, Australia and Saudi Arabia. Sales to one distributor represented
approximately 21% of net sales and 17% of accounts receivable in fiscal 1996.
Sales to two distributors represented approximately 26% and 11% of net sales and
29% and 10% of accounts receivable in fiscal 1995. Sales to one distributor
represented approximately 26% of net sales in fiscal 1994.

Export sales were approximately $7,236,000, $4,450,000 and $4,143,000 for fiscal
years 1996, 1995 and 1994, respectively. These sales were to customers
principally in Canada, Saudi Arabia and Australia. No one geographic region
represented more than 10% of total sales.

Although the Company manufactures its own combustible gas sensors, the Company
purchases all of its toxic gas and oxygen sensors from one supplier. Toxic gas
and oxygen sensors are available from several other sources; however, the
Company believes that the sensors produced by this supplier are most compatible
with the Company's overall product specifications. Failure of the supplier to
provide sufficient quantities of sensors on a timely basis could have a material
effect on the Company's operations.
- --------------------------------------------------------------------------------
12. RELATED PARTY TRANSACTIONS:

During fiscal 1996, the Company had sales to their partner in Industrial
Scientific Arabia, Ltd. in the amount of $2,230,000, of which $132,330 is
included in accounts receivable at January 25, 1997.
- --------------------------------------------------------------------------------
13. PURCHASE OF COMMON STOCK:

In November 1996, the Board of Directors approved a plan to purchase up to
337,500 shares of the Company's common stock. During 1996, the Company purchased
11,800 shares of common stock on the open market for an aggregate price of
$178,663.
- --------------------------------------------------------------------------------


















14. STOCK OPTION PLAN:

On May 12, 1993, the Board adopted and the shareholders approved the 1993 Stock
Option Plan and reserved 168,750 shares of common stock for issuance under the
plan. All options must be issued at current market prices at the time of grant.
The options vest over a 5 year period from the date of issuance and expire
after 10 years.
- --------------------------------------------------------------------------------
                                      17
 
<PAGE>
 
14.  STOCK OPTION PLAN (continued)

The Company has elected to account for stock-based employee compensation
arrangements under the provisions of Accounting Principles Board Opinion (APB)
No. 25, "Accounting for Stock Issued to Employees," rather than Statement of
Financial Accounting Standard (SFAS) No. 123, "Accounting for Stock-Based
Compensation." If compensation cost had been determined based on the fair value
at the grant dates in accordance with SFAS No. 123, the effect on the Company's
net income and earnings per share would not have been material. Pertinent
information regarding options under the plan is as follows:

<TABLE> 
<CAPTION> 
                                                1996                 1995                1994
                                              --------------------------------------------------
<S>                                          <C>                    <C>                  <C> 
Outstanding, beginning of year:
 Number                                        52,008               48,853               47,900 
 Weighted average exercise price               $16.71               $16.51               $16.18

Granted:                                                                             
 Number                                         2,825                3,930                2,090
 Weighted average exercise price               $17.56               $19.98               $25.47
                                                                
Exercised:
 Number                                             -                    -                   87

Expired or forfeited:
 Number                                         1,020                  775               1,050
 Weighted average exercise price               $17.20               $18.23              $20.96
                                             --------             --------            --------
Outstanding end of year:
  Number                                       53,813               52,008              48,853
  Weighted average exercise price              $16.75               $16.71              $16.51
                                             ========             ========            ========

Exercisable:
  Number                                       40,431               31,067              20,616
  Weighted average exercise price              $16.57               $16.49              $16.21

Shares reserved for future options            114,937              116,742             119,897
</TABLE> 
- --------------------------------------------------------------------------------
The following tables summarize certain stock option information at January 25,
1997:

<TABLE> 
<CAPTION> 

Options outstanding:                                       Weighted Average             Weighted Average
Range of Exercise Price              Number                 Remaining Life               Exercise Price
- -------------------------------------------------------------------------------------------------------
<S>                                   <C>                        <C>                         <C> 
$15.00 - $22.50                       51,948                      6.76                       $16.45
$22.51 - $28.25                        1,865                      7.05                        25.13
                                      ------                     -----                       ------
                                      53,813                      6.77                       $16.75
                                      ======                     =====                       ======
Options exercisable:                                                                           

<CAPTION>                                                                                                
                                                                                      Weighted Average
Range of Exercise Price                           Number                                Exercise Price
- -------------------------------------------------------------------------------------------------------
<S>                                                <C>                                        <C> 
$15.00 - $22.50                                    39,161                                     $16.31
$22.51 - $28.25                                     1,270                                      24.94
                                                   ------                                     ------
                                                   40,431                                     $16.57
                                                   ======                                     ======
</TABLE> 
- --------------------------------------------------------------------------------
15.  DISCLOSURE ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS:

The following methods and assumptions were used to estimate the fair value of
each class of financial instruments for which it is practicable to estimate that
value:

Cash and cash equivalents: 
  The carrying amount approximates fair value because of the short maturity of
  those instruments.

Short and long-term investments:
  Fair values are based on quoted market prices.

Long-term debt:
  Rates currently available for debt with similar terms and remaining maturities
  are used to estimate fair value of existing debt.
- --------------------------------------------------------------------------------
                                      18
<PAGE>
 
15.  DISCLOSURE ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS:(continued)

<TABLE> 
<CAPTION> 
                                         January 25, 1997                        January 27, 1996
                                 ------------------------------           ------------------------------     
                                  Carrying                                 Carrying
                                   Amount            Fair Value             Amount            Fair Value
                                 ----------         -----------           ----------         -----------
<S>                           <C>                  <C>                  <C>                 <C> 
Financial assets:
   Cash and cash equivalents    $6,879,111           $6,879,111           $7,335,292          $7,335,292  
   Short-term investments       12,379,680           12,528,508            7,815,736           7,848,210 
   Long-term investments         1,070,849            1,142,842              928,610             941,037
                                                                                           
Financial liabilities:                                                                     
   Long-term debt               (4,512,333)          (4,478,000)          (5,125,403)         (4,850,000)
</TABLE> 

- --------------------------------------------------------------------------------
16.  NEW ACCOUNTING PRONOUNCEMENTS:

In February 1997, the Financial Accounting Standards Board issued SFAS No. 128,
"Earnings Per Share." The standard is effective for fiscal 1997. SFAS No. 128
specifies the computation, presentation and disclosure requirements for earnings
per share. Management does not believe that the effect of this statement will be
material to the financial statements.

- --------------------------------------------------------------------------------
17.  SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED):

The following table sets forth certain items included in the Company's unaudited
consolidated financial statements for each quarter of fiscal 1996 and 1995.

<TABLE> 
<CAPTION> 
                                                      First         Second          Third         Fourth
                                                     Quarter        Quarter        Quarter        Quarter
                                                     -------        -------        -------        -------
<S>                                                 <C>             <C>            <C>            <C> 
Fiscal 1996:
   Net sales                                        $9,361          $9,072          $8,656         $9,559
   Gross profit                                      5,075           4,760           4,886          5,094
   Operating profit                                  1,571           1,058           1,524            934
   Net income                                        1,120             795           1,064            746
   Earnings per share                                  .33             .24             .31            .22

<CAPTION> 

                                                      First         Second          Third         Fourth
                                                     Quarter        Quarter        Quarter        Quarter
                                                     -------        -------        -------        -------
<S>                                                  <C>            <C>            <C>            <C> 
Fiscal 1995:
   Net sales                                         $8,858         $8,205          $8,625         $8,445
   Gross profit                                       4,716          4,338           4,631          4,506
   Operating profit                                   1,633          1,238           1,254          1,426
   Net income                                         1,141            910             946          1,070
   Earnings per share                                   .34            .27             .28            .31
</TABLE> 

In the fourth quarter of fiscal 1995, the Company reduced its accrual for its
employer match to the profit-sharing plan by approximately $240,000 net of
income taxes.

- --------------------------------------------------------------------------------
                                      19
<PAGE>
Report of Independent Accountants
- --------------------------------------------------------------------------------

To the Board of Directors and Shareholders Industrial Scientific Corporation:

     We have audited the accompanying consolidated balance sheet of Industrial
Scientific Corporation and subsidiaries as of January 25, 1997 and January 27,
1996, and the related consolidated statements of income, changes in
shareholders' equity and cash flows for each of the three years in the period
ended January 25, 1997. These financial statements 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 financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Industrial
Scientific Corporation and subsidiaries as of January 25, 1997 and January 27,
1996, and the consolidated results of their operations and their cash flows for
each of the three years in the period ended January 25, 1997, in conformity with
generally accepted accounting principles.

                                     Coopers & Lybrand L.L.P.

600 Grant Street
Pittsburgh, Pennsylvania
March 7, 1997, except for Note 3 as to
       which the date is March 10, 1997.

- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
<S>                                          <C>                                     <C> 
OFFICERS                                     BOARD OF DIRECTORS                        SUBSIDIARIES                        
Kent D. McElhattan                           Kenton E. McElhattan                      Industrial Scientific Devices, Inc  
President and Chief Executive Officer        Chairman                                  P.O. Box 12259                      
                                             Industrial Scientific Corporation         6 - 7 Dronn, Gade                   
James P. Hart                                                                          St. Thomas, USVI 00801               
Vice President, Finance and Chief            Kent D. McElhattan                      
  Financial Officer                          President and Chief Executive Officer     Industrial Scientific of Delaware, Inc.
                                             Industrial Scientific Corporation         103 Springer Building                  
Garth F. Miller                                                                        3411 Silverside Road                   
Vice President, Sales and Service            Herbert F. Gerhard                        Wilmington Delaware 19810               
                                             Former President and Chief                                                      
Jeffrey B. Morgan                              Executive Officer                       Industrial Scientific Arabia, Ltd.
Vice President, Manufacturing                National Mine Service Company             P.O. Box 8444                     
                                                                                       Riyadh 11482                      
Dr. Annie Q. Wang                            Dr. Donald J. McGraw                      Kingdom of Saudi Arabia            
Vice President, Science and                  Medical Director                                                           
  Technology                                 Occupational and Environmental            Industrial Scientific Pty.    
                                                Medicine                                14 Arterial Road               
Patricia L. Gerney                           Shadyside Hospital                        St. Ives, New South Wales 2075 
Corporate Secretary                                                                    Australia                      
                                             James D. Morton, Esquire                                               
                                             Shareholder, Buchanan Ingersoll           GENERAL COUNSEL                  
CORPORATE HEADQUARTERS                       Professional Corporation                  Buchanan Ingersoll Professional  
Industrial Scientific Corporation                                                      Corporation                      
1001 Oakdale Road                                                                      Pittsburgh, Pennsylvania         
Oakdale, PA 15071-1500                                                                                                  
(412) 788-4353                                                                         INDEPENDENT ACCOUNTANTS          
1-800-DETECTS (338-3287)                                                               Coopers & Lybrand L.L.P.         
Fax: (412) 788-8353                                                                    Pittsburgh, Pennsylvania          
                                                                                                                       
</TABLE> 
- --------------------------------------------------------------------------------

                                      20
<PAGE>

     [PHOTO OF INDUSTRIAL SCIENTIFIC CORPORATE HEADQUARTERS APPEARS HERE]

Corporate headquarters near Pittsburgh, Pennsylvania, includes manufacturing, 
research and training facilities.


Annual Meeting of Shareholders
        The annual meeting of shareholders will be held at Industrial
Scientific Corporation, 1001 Oakdale Road, Oakdale, Pennsylvania, 10:00 a.m.,
June 11, 1997. (Hankey Farms Exit off Route 22/30 West, located between downtown
Pittsburgh and the International Airport.)

Market for the Company's Common Stock
        The Company's common stock began public trading on June 30, 1993, and is
traded on the NASDAQ National Market System under the symbol ISCX. As of April
4, 1997, there were 1,455 beneficial holders of the Company's common stock.
        The Company paid nominal cash dividends in fiscal year 1993 (see
Statement of Changes in Shareholders Equity, page 10) and does not intend to pay
cash dividends in the foreseeable future.
        The following table sets forth, for the applicable quarters indicated,
the high and low closing sale prices for the common stock as reported on
NASDAQ/NMS.
<TABLE> 
<CAPTION> 

                        Year Ended                     Year Ended
                     January 27, 1996               January 25, 1997
     -------------------------------------------------------------------
     Quarter       High            Low            High             Low
     <S>          <C>             <C>            <C>              <C> 
     First        $23.75          $18.50         $18.25           $18.25 
     Second       $21.50          $17.25         $19.00           $18.00
     Third        $21.75          $19.50         $13.50           $13.50
     Fourth       $21.75          $17.50         $16.75           $16.25
     -------------------------------------------------------------------
</TABLE> 

Form 10-K
        Copies of the Industrial Scientific Corporation Annual Report on 
Form 10-K as filed with the Securities and Exchange Commission will be sent
without charge upon request. Address requests to Patricia L. Gerney, Corporate
Secretary, Industrial Scientific Corporation, 1001 Oakdale Road, Oakdale, PA
15071-1500.

Transfer Agent and Registrar
Chemical Mellon Shareholder Services
85 Challenger Road
Ridgefield Park, New Jersey 07660
800-756-3353

- --------------------------------------------------------------------------------
                                      21


<PAGE>

                                                                   EXHIBIT 23.01


 
              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS



We consent to the incorporation by reference in the registration statement of
Industrial Scientific Corporation on Form S-8 (Registration No. 33-65532) of our
report dated March 7, 1997, except for note 3, as to which the date is March 10,
1997, on our audits of the consolidated financial statements of Industrial
Scientific Corporation and Subsidiaries as of January 25, 1997, and January 27,
1996, and for each of the three years in the period ended January 25, 1997,
which reports are incorporated by reference.



 
                                         Coopers & Lybrand L.L.P.



600 Grant Street
Pittsburgh, Pennsylvania
April 23, 1997



 

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JAN-25-1997
<PERIOD-START>                             JAN-28-1996
<PERIOD-END>                               JAN-25-1997
<CASH>                                       6,879,111
<SECURITIES>                                12,379,680
<RECEIVABLES>                                4,846,000
<ALLOWANCES>                                    55,000
<INVENTORY>                                  3,159,519
<CURRENT-ASSETS>                            28,064,008
<PP&E>                                      13,596,163
<DEPRECIATION>                               6,217,653
<TOTAL-ASSETS>                              39,218,140
<CURRENT-LIABILITIES>                        3,866,403
<BONDS>                                      2,900,000
                                0
                                          0
<COMMON>                                        33,751
<OTHER-SE>                                  31,083,519
<TOTAL-LIABILITY-AND-EQUITY>                39,218,140
<SALES>                                     36,647,770
<TOTAL-REVENUES>                            36,647,770
<CGS>                                       16,832,999
<TOTAL-COSTS>                               31,560,602
<OTHER-EXPENSES>                                69,150
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             190,312
<INCOME-PRETAX>                              5,604,962
<INCOME-TAX>                                 1,880,000
<INCOME-CONTINUING>                          3,724,962
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 3,724,962
<EPS-PRIMARY>                                     1.10
<EPS-DILUTED>                                     1.10
        

</TABLE>


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