<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE INCOME
STATEMENT FOR THE NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1996, AND THE BALANCE
SHEET AS OF SEPTEMBER 30, 1996, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                           DEC-31-1996
<PERIOD-START>                              JAN-01-1996
<PERIOD-END>                                SEP-30-1996
<CASH>                                            8,532
<SECURITIES>                                          0
<RECEIVABLES>                                    12,213
<ALLOWANCES>                                        339
<INVENTORY>                                       7,830
<CURRENT-ASSETS>                                 31,576
<PP&E>                                           14,550
<DEPRECIATION>                                    8,725
<TOTAL-ASSETS>                                   41,879
<CURRENT-LIABILITIES>                             8,598
<BONDS>                                              91
<PREFERRED-MANDATORY>                                 0
<PREFERRED>                                           0
<COMMON>                                             67
<OTHER-SE>                                       32,627
<TOTAL-LIABILITY-AND-EQUITY>                     41,879
<SALES>                                          29,425
<TOTAL-REVENUES>                                 37,264
<CGS>                                            10,360
<TOTAL-COSTS>                                    13,363
<OTHER-EXPENSES>                                 17,129
<LOSS-PROVISION>                                      0
<INTEREST-EXPENSE>                                   24
<INCOME-PRETAX>                                   6,907
<INCOME-TAX>                                      2,526
<INCOME-CONTINUING>                               4,381
<DISCONTINUED>                                        0
<EXTRAORDINARY>                                       0
<CHANGES>                                             0
<NET-INCOME>                                      4,381
<EPS-PRIMARY>                                       .63
<EPS-DILUTED>                                       .63