<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          MAY-31-1997
<PERIOD-START>                             JUN-01-1996
<PERIOD-END>                               FEB-28-1997
<CASH>                                         581,179
<SECURITIES>                                         0
<RECEIVABLES>                                3,319,844
<ALLOWANCES>                                    34,065
<INVENTORY>                                  2,146,282
<CURRENT-ASSETS>                             6,304,738
<PP&E>                                       2,509,804
<DEPRECIATION>                               2,222,893
<TOTAL-ASSETS>                               8,998,837
<CURRENT-LIABILITIES>                        3,040,055
<BONDS>                                         66,785
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        43,541
<OTHER-SE>                                   5,848,456
<TOTAL-LIABILITY-AND-EQUITY>                 8,998,837
<SALES>                                     15,916,829
<TOTAL-REVENUES>                            18,000,592
<CGS>                                       11,565,625
<TOTAL-COSTS>                               12,720,035
<OTHER-EXPENSES>                             4,611,454
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              19,046
<INCOME-PRETAX>                                650,057
<INCOME-TAX>                                   299,540
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   350,517
<EPS-PRIMARY>                                      .08
<EPS-DILUTED>                                        0