
<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                      11,569,087
<SECURITIES>                                         0
<RECEIVABLES>                                6,565,600
<ALLOWANCES>                                    66,724
<INVENTORY>                                  3,360,347
<CURRENT-ASSETS>                            21,859,456
<PP&E>                                      12,284,175
<DEPRECIATION>                               3,416,886
<TOTAL-ASSETS>                              30,726,745
<CURRENT-LIABILITIES>                        3,615,469
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        85,279
<OTHER-SE>                                  21,626,363
<TOTAL-LIABILITY-AND-EQUITY>                30,726,745
<SALES>                                     14,142,748
<TOTAL-REVENUES>                            16,474,462
<CGS>                                       10,366,567
<TOTAL-COSTS>                               12,200,429
<OTHER-EXPENSES>                             3,530,433
<LOSS-PROVISION>                                22,500
<INTEREST-EXPENSE>                             284,042
<INCOME-PRETAX>                                956,317
<INCOME-TAX>                                    44,000
<INCOME-CONTINUING>                            912,317
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   912,317
<EPS-PRIMARY>                                     0.05
<EPS-DILUTED>                                     0.05
        

</TABLE>
