<ARTICLE>                     5
                       
<MULTIPLIER>                  1
<CURRENCY>                    U.S. Dollars                
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>               APR-30-1997          
<PERIOD-START>                  MAY-01-1996    
<PERIOD-END>                    JUL-31-1996    
<EXCHANGE-RATE>                               1
<CASH>                                3,236,500
<SECURITIES>                                  0
<RECEIVABLES>                         7,302,600
<ALLOWANCES>                            332,800
<INVENTORY>                           4,649,400
<CURRENT-ASSETS>                     16,481,000
<PP&E>                                5,632,700
<DEPRECIATION>                        3,667,300
<TOTAL-ASSETS>                       24,136,900
<CURRENT-LIABILITIES>                 4,967,400
<BONDS>                                       0 
<PREFERRED-MANDATORY>                         0 
<PREFERRED>                                   0 
<COMMON>                                 49,500
<OTHER-SE>                           17,313,200
<TOTAL-LIABILITY-AND-EQUITY>         24,136,900
<SALES>                              10,489,700
<TOTAL-REVENUES>                     10,489,700
<CGS>                                 4,768,200
<TOTAL-COSTS>                         4,768,200
<OTHER-EXPENSES>                      4,359,600
<LOSS-PROVISION>                              0 
<INTEREST-EXPENSE>                       42,300
<INCOME-PRETAX>                       1,319,600
<INCOME-TAX>                            488,200
<INCOME-CONTINUING>                     831,400
<DISCONTINUED>                                0 
<EXTRAORDINARY>                               0 
<CHANGES>                                     0 
<NET-INCOME>                            831,400
<EPS-PRIMARY>                               .15
<EPS-DILUTED>                               .15