<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM AS OF AND
FOR THE THREE MONTHS PERIOD ENDED OCTOBER 31, 2000 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> JUL-31-2001
<PERIOD-START> AUG-01-2000
<PERIOD-END> OCT-31-2000
<CASH> 7,195,133
<SECURITIES> 0
<RECEIVABLES> 2,939,099
<ALLOWANCES> (120,000)
<INVENTORY> 4,300,669
<CURRENT-ASSETS> 14,789,060
<PP&E> 5,594,115
<DEPRECIATION> (2,255,511)
<TOTAL-ASSETS> 27,416,099
<CURRENT-LIABILITIES> 7,580,814
<BONDS> 0
0
0
<COMMON> 70,002
<OTHER-SE> 17,438,987
<TOTAL-LIABILITY-AND-EQUITY> 27,416,099
<SALES> 8,302,040
<TOTAL-REVENUES> 8,302,040
<CGS> 5,155,010
<TOTAL-COSTS> 5,155,010
<OTHER-EXPENSES> 1,679,356
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 62,799
<INCOME-PRETAX> 1,530,895
<INCOME-TAX> 581,740
<INCOME-CONTINUING> 949,155
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 949,155
<EPS-BASIC> 0.14
<EPS-DILUTED> 0.14
</TABLE>