<ARTICLE>                                            5
       
                                                  
<PERIOD-TYPE>                                        3-MOS
<FISCAL-YEAR-END>                                                               DEC-31-1995
<PERIOD-END>                                                                    MAR-31-1996
<CASH>                                                                          4,183,000
<SECURITIES>                                                                    11,496,000
<RECEIVABLES>                                                                   1,840,000
<ALLOWANCES>                                                                    (29,000)
<INVENTORY>                                                                     1,961,000
<CURRENT-ASSETS>                                                                20,229,000
<PP&E>                                                                          3,605,000
<DEPRECIATION>                                                                  (1,883,000)
<TOTAL-ASSETS>                                                                  22,263,000
<CURRENT-LIABILITIES>                                                           2,905,000
<BONDS>                                                                         0
<PREFERRED-MANDATORY>                                                           0
<PREFERRED>                                                                     0
<COMMON>                                                                        53,675,000
<OTHER-SE>                                                                      (34,624,000)
<TOTAL-LIABILITY-AND-EQUITY>                                                    22,263,000
<SALES>                                                                         4,197,000
<TOTAL-REVENUES>                                                                4,829,000
<CGS>                                                                           1,390,000
<TOTAL-COSTS>                                                                   2,210,000
<OTHER-EXPENSES>                                                                71,000
<LOSS-PROVISION>                                                                0
<INTEREST-EXPENSE>                                                              (138,000)
<INCOME-PRETAX>                                                                 1,296,000
<INCOME-TAX>                                                                    19,000
<INCOME-CONTINUING>                                                             1,277,000
<DISCONTINUED>                                                                  0
<EXTRAORDINARY>                                                                 0
<CHANGES>                                                                       0
<NET-INCOME>                                                                    1,277,000
<EPS-PRIMARY>                                                                   .07
<EPS-DILUTED>                                                                   .07