<ARTICLE> 5 
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) AND 
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH 
</LEGEND>
<MULTIPLIER> 1,000 
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           3,777
<SECURITIES>                                     1,001
<RECEIVABLES>                                      677
<ALLOWANCES>                                       185
<INVENTORY>                                        936
<CURRENT-ASSETS>                                 6,383
<PP&E>                                           3,322
<DEPRECIATION>                                   1,423
<TOTAL-ASSETS>                                   8,364
<CURRENT-LIABILITIES>                            1,951
<BONDS>                                            400
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           780
<OTHER-SE>                                      78,636
<TOTAL-LIABILITY-AND-EQUITY>                     8,364
<SALES>                                            491
<TOTAL-REVENUES>                                   724
<CGS>                                              419
<TOTAL-COSTS>                                    3,037
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   7
<INCOME-PRETAX>                                 (2,740)  
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             (2,740)  
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    (2,740)  
<EPS-PRIMARY>                                    (0.07)
<EPS-DILUTED>                                    (0.07)