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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 3,144,132
<SECURITIES> 0
<RECEIVABLES> 1,152,099
<ALLOWANCES> (65,421)
<INVENTORY> 2,165,180
<CURRENT-ASSETS> 6,492,955
<PP&E> 6,148,746
<DEPRECIATION> 3,725,289
<TOTAL-ASSETS> 12,477,511
<CURRENT-LIABILITIES> 920,726
<BONDS> 0
0
0
<COMMON> 85,093,164
<OTHER-SE> (73,686,569)
<TOTAL-LIABILITY-AND-EQUITY> 12,477,511
<SALES> 3,650,299
<TOTAL-REVENUES> 4,813,634
<CGS> 1,073,403
<TOTAL-COSTS> 5,472,817
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (1,585,177)
<INCOME-TAX> 0
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (1,585,177)
<EPS-BASIC> (0.10)
<EPS-DILUTED> (0.10)
</TABLE>
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