<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM THE CONSOLIDATED FINANCIAL STATEMENTS FOUND ON PAGES 3 AND 4
OF THE COMPANY'S FORM 10-QSB FOR THE THREE-MONTHS ENDED
JUNE 30, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-START> APR-01-1998
<PERIOD-END> JUN-30-1998
<CASH> 840,905
<SECURITIES> 0
<RECEIVABLES> 364,178
<ALLOWANCES> 5,000
<INVENTORY> 325,038
<CURRENT-ASSETS> 1,633,222
<PP&E> 6,089,259
<DEPRECIATION> 3,917,614
<TOTAL-ASSETS> 4,265,224
<CURRENT-LIABILITIES> 523,842
<BONDS> 0
0
0
<COMMON> 5,739
<OTHER-SE> 1,497,826
<TOTAL-LIABILITY-AND-EQUITY> 4,265,224
<SALES> 570,621
<TOTAL-REVENUES> 751,364
<CGS> 384,269
<TOTAL-COSTS> 496,696
<OTHER-EXPENSES> 298,100
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 823
<INCOME-PRETAX> (35,921)
<INCOME-TAX> 0
<INCOME-CONTINUING> (35,921)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (35,921)
<EPS-BASIC> (.006)
<EPS-DILUTED> (.006)
</TABLE>
