<ARTICLE> 5
       
                                                            
<PERIOD-TYPE>                              YEAR                    9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1998
<PERIOD-START>                             JAN-01-1997             JUL-01-1998
<PERIOD-END>                               DEC-31-1997             SEP-30-1998
<CASH>                                       1,832,677               1,187,522
<SECURITIES>                                         0                       0
<RECEIVABLES>                                2,333,028               3,274,472
<ALLOWANCES>                                    45,703                  45,054
<INVENTORY>                                  1,103,355               1,708,608
<CURRENT-ASSETS>                             5,653,791               7,084,484
<PP&E>                                       1,561,324               1,972,848
<DEPRECIATION>                                 322,616                 508,082
<TOTAL-ASSETS>                              14,956,800              17,084,146
<CURRENT-LIABILITIES>                        1,708,681               1,717,138
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       252,736                 252,736
<OTHER-SE>                                  12,597,336              14,716,225
<TOTAL-LIABILITY-AND-EQUITY>                14,956,800              17,084,146
<SALES>                                     13,621,292              13,492,507
<TOTAL-REVENUES>                            13,621,292              13,492,507
<CGS>                                        5,528,542               5,977,138
<TOTAL-COSTS>                                5,528,542               5,977,138
<OTHER-EXPENSES>                             4,431,849               4,070,818
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                              3,776,609               3,444,551
<INCOME-TAX>                                 1,340,697               1,222,815
<INCOME-CONTINUING>                          2,435,912               2,221,736
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 2,435,912               2,221,736
<EPS-PRIMARY>                                     0.97                    0.88
<EPS-DILUTED>                                     0.96                    0.86