<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> JUN-30-1999 <PERIOD-START> JUL-01-1998 <PERIOD-END> DEC-31-1998 <CASH> 3,225,600 <SECURITIES> 581,700 <RECEIVABLES> 3,425,400 <ALLOWANCES> 0 <INVENTORY> 7,101,800 <CURRENT-ASSETS> 15,386,200 <PP&E> 9,338,100 <DEPRECIATION> 6,544,300 <TOTAL-ASSETS> 18,344,600 <CURRENT-LIABILITIES> 1,267,400 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 10,130,100 <OTHER-SE> (53,800) <TOTAL-LIABILITY-AND-EQUITY> 18,344,600 <SALES> 9,267,500 <TOTAL-REVENUES> 9,267,500 <CGS> 6,612,200 <TOTAL-COSTS> 6,612,200 <OTHER-EXPENSES> 3,363,200 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (595,900) <INCOME-TAX> 0 <INCOME-CONTINUING> (595,900) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (595,900) <EPS-PRIMARY> (.17) <EPS-DILUTED> (.17)