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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 10,870
<SECURITIES> 0
<RECEIVABLES> 2,398
<ALLOWANCES> 1,131
<INVENTORY> 405
<CURRENT-ASSETS> 13,165
<PP&E> 9,537
<DEPRECIATION> 7,057
<TOTAL-ASSETS> 15,746
<CURRENT-LIABILITIES> 4,836
<BONDS> 1,942
0
0
<COMMON> 30
<OTHER-SE> 10,364
<TOTAL-LIABILITY-AND-EQUITY> 15,746
<SALES> 4,944
<TOTAL-REVENUES> 4,944
<CGS> 1,659
<TOTAL-COSTS> 1,659
<OTHER-EXPENSES> 259
<LOSS-PROVISION> 16
<INTEREST-EXPENSE> 178
<INCOME-PRETAX> (4,365)
<INCOME-TAX> 0
<INCOME-CONTINUING> (4,365)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (4,365)
<EPS-BASIC> (0.07)
<EPS-DILUTED> (0.07)
</TABLE>
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