<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
INCOME STATEMENT FOR THE SIX-MONTH PERIOD ENDED JUNE 30, 1996 AND THE
BALANCE SHEET AS OF JUNE 30, 1996, AND IS QUALIFIED IN ITS ENTIRETY BY 
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                           8,172
<SECURITIES>                                         0
<RECEIVABLES>                                   12,204
<ALLOWANCES>                                       340
<INVENTORY>                                      6,726
<CURRENT-ASSETS>                                29,721
<PP&E>                                          14,599
<DEPRECIATION>                                   8,611
<TOTAL-ASSETS>                                  39,762
<CURRENT-LIABILITIES>                            8,929
<BONDS>                                            108
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            67
<OTHER-SE>                                      30,550
<TOTAL-LIABILITY-AND-EQUITY>                    39,762
<SALES>                                         19,242
<TOTAL-REVENUES>                                24,527
<CGS>                                            6,845
<TOTAL-COSTS>                                    8,916
<OTHER-EXPENSES>                                11,221
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  14
<INCOME-PRETAX>                                  4,427
<INCOME-TAX>                                     1,683
<INCOME-CONTINUING>                              2,744
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,744
<EPS-PRIMARY>                                      .38
<EPS-DILUTED>                                      .38