<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMEDICS INC.'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED JUNE 28, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> JAN-03-1998 <PERIOD-END> JUN-28-1997 <CASH> 168,344 <SECURITIES> 57,576 <RECEIVABLES> 65,426 <ALLOWANCES> 4,851 <INVENTORY> 59,905 <CURRENT-ASSETS> 361,576 <PP&E> 52,220 <DEPRECIATION> 30,643 <TOTAL-ASSETS> 533,903 <CURRENT-LIABILITIES> 79,011 <BONDS> 143,464 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 3,685 <OTHER-SE> 212,085 <TOTAL-LIABILITY-AND-EQUITY> 533,903 <SALES> 148,053 <TOTAL-REVENUES> 148,053 <CGS> 75,101 <TOTAL-COSTS> 75,101 <OTHER-EXPENSES> 11,811 <LOSS-PROVISION> 285 <INTEREST-EXPENSE> 983 <INCOME-PRETAX> 39,659 <INCOME-TAX> 8,938 <INCOME-CONTINUING> 27,472 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 27,472 <EPS-PRIMARY> .75 <EPS-DILUTED> .71