<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMEDICS
INC.'S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 30, 1995 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-30-1995
<PERIOD-END>                               DEC-30-1995
<CASH>                                          37,413
<SECURITIES>                                    77,916
<RECEIVABLES>                                   50,813
<ALLOWANCES>                                     4,244
<INVENTORY>                                     47,947
<CURRENT-ASSETS>                               219,768
<PP&E>                                          40,899
<DEPRECIATION>                                  21,452
<TOTAL-ASSETS>                                 386,249
<CURRENT-LIABILITIES>                          105,428
<BONDS>                                         45,201
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         3,399
<OTHER-SE>                                     169,352
<TOTAL-LIABILITY-AND-EQUITY>                   386,249
<SALES>                                        208,041
<TOTAL-REVENUES>                               208,041
<CGS>                                          110,935
<TOTAL-COSTS>                                  110,935
<OTHER-EXPENSES>                                14,874
<LOSS-PROVISION>                                   689
<INTEREST-EXPENSE>                               3,677
<INCOME-PRETAX>                                 35,567
<INCOME-TAX>                                    11,781
<INCOME-CONTINUING>                             17,174
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    17,174
<EPS-PRIMARY>                                      .51
<EPS-DILUTED>                                      .48