<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS AS OF JUNE 30, 2000 AND FOR THE THREE AND
SIX-MONTH PERIODS THEN ENDED.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 5,652,827
<SECURITIES> 0
<RECEIVABLES> 7,624,259
<ALLOWANCES> 997,851
<INVENTORY> 3,853,604
<CURRENT-ASSETS> 18,536,958
<PP&E> 14,534,492
<DEPRECIATION> 12,701,307
<TOTAL-ASSETS> 20,811,867
<CURRENT-LIABILITIES> 10,421,217
<BONDS> 0
0
0
<COMMON> 10,922
<OTHER-SE> 5,229,977
<TOTAL-LIABILITY-AND-EQUITY> 20,811,867
<SALES> 9,000,572
<TOTAL-REVENUES> 9,193,429
<CGS> 3,611,941
<TOTAL-COSTS> 16,656,681
<OTHER-EXPENSES> (174,824)
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 480,177
<INCOME-PRETAX> (7,768,605)
<INCOME-TAX> 0
<INCOME-CONTINUING> (7,768,605)
<DISCONTINUED> (932,596)
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (8,701,201)
<EPS-BASIC> (.80)
<EPS-DILUTED> (.80)
</TABLE>