<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED NOVAMETRIX MEDICAL SYSTEMS INC. CONDENSED CONSOLIDATED STATEMENTS OF
INCOME FOR THE SIX MONTHS ENDED NOVEMBER 1, 1998 AND THE CONDENSED CONSOLIDATED
BALANCE SHEETS AT NOVEMBER 1, 1998, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAY-02-1999
<PERIOD-END>                               NOV-01-1998
<CASH>                                         181,324
<SECURITIES>                                         0
<RECEIVABLES>                                9,218,360
<ALLOWANCES>                                  (250,000)
<INVENTORY>                                  8,745,331
<CURRENT-ASSETS>                            21,366,844
<PP&E>                                       9,464,702
<DEPRECIATION>                              (6,382,262)
<TOTAL-ASSETS>                              30,937,893
<CURRENT-LIABILITIES>                        6,796,443
<BONDS>                                         72,856
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        92,047
<OTHER-SE>                                  23,976,547
<TOTAL-LIABILITY-AND-EQUITY>                30,937,893
<SALES>                                     15,161,947
<TOTAL-REVENUES>                            15,161,947
<CGS>                                        6,064,538
<TOTAL-COSTS>                                6,064,538
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              25,077
<INCOME-PRETAX>                              1,521,757
<INCOME-TAX>                                   426,100
<INCOME-CONTINUING>                          1,095,657
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,095,657
<EPS-BASIC>                                        .13
<EPS-DILUTED>                                      .12