<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 October 31, 1999 and the Condensed Consolidated
Balance Sheets at Octoer 31, 1999, and is qualified in its entirety by reference
to such financial statements.
</LEGEND>

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          APR-30-2000
<PERIOD-END>                               OCT-31-1999
<CASH>                                         228,021
<SECURITIES>                                         0
<RECEIVABLES>                               15,574,186
<ALLOWANCES>                                 (300,000)
<INVENTORY>                                 11,648,576
<CURRENT-ASSETS>                            28,475,700
<PP&E>                                      11,428,440
<DEPRECIATION>                             (7,786,355)
<TOTAL-ASSETS>                              47,797,452
<CURRENT-LIABILITIES>                       13,508,566
<BONDS>                                      9,131,150
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        92,698
<OTHER-SE>                                  25,065,038
<TOTAL-LIABILITY-AND-EQUITY>                47,797,452
<SALES>                                     18,193,066
<TOTAL-REVENUES>                            18,193,066
<CGS>                                        7,610,139
<TOTAL-COSTS>                                7,610,139
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             453,365
<INCOME-PRETAX>                                899,638
<INCOME-TAX>                                   288,100
<INCOME-CONTINUING>                            611,538
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                    (223,544)
<NET-INCOME>                                   387,994
<EPS-BASIC>                                        .05
<EPS-DILUTED>                                      .05