<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> SEP-30-2000
<CASH> 461,108
<SECURITIES> 1,375,000
<RECEIVABLES> 743,633
<ALLOWANCES> 34,700
<INVENTORY> 761,295
<CURRENT-ASSETS> 3,042,801
<PP&E> 2,140,676
<DEPRECIATION> 1,008,130
<TOTAL-ASSETS> 5,685,965
<CURRENT-LIABILITIES> 440,200
<BONDS> 379,551
0
0
<COMMON> 17,555
<OTHER-SE> 4,828,659
<TOTAL-LIABILITY-AND-EQUITY> 5,685,965
<SALES> 4,587,126
<TOTAL-REVENUES> 4,587,126
<CGS> 1,566,156
<TOTAL-COSTS> 1,566,156
<OTHER-EXPENSES> 2,232,984
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 42,043
<INCOME-PRETAX> 904,670
<INCOME-TAX> 0
<INCOME-CONTINUING> 904,670
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 904,670
<EPS-BASIC> 0.72
<EPS-DILUTED> 0.65
</TABLE>