<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
ACCOMPANYING FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           7,791
<SECURITIES>                                         0
<RECEIVABLES>                                    6,965
<ALLOWANCES>                                       213
<INVENTORY>                                      6,224
<CURRENT-ASSETS>                                21,319
<PP&E>                                           7,433
<DEPRECIATION>                                   3,378
<TOTAL-ASSETS>                                  29,154
<CURRENT-LIABILITIES>                            6,839
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            23
<OTHER-SE>                                      22,292
<TOTAL-LIABILITY-AND-EQUITY>                    29,154
<SALES>                                         22,439
<TOTAL-REVENUES>                                24,093
<CGS>                                            9,912
<TOTAL-COSTS>                                   20,767
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  3,418
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                              3,418
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,418
<EPS-PRIMARY>                                      .15
<EPS-DILUTED>                                      .15