EXHIBIT 12.1

STATEMENT REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

PerkinElmer, Inc.

Computation of Ratio of Earnings to Fixed Charges

(Unaudited)

	Fiscal Year Ended
	December 28, 2008		December 30, 2007		December 31, 2006		January 1, 2006		January 2, 2005
	(In thousands; except for ratio)
Fixed charges:
Interest expense and amortization of debt premiums and discounts on all indebtedness	$	23,625	$	14,772	$	8,635	$	40,531	$	36,203
Interest on rental expense		8,080		7,040		7,360		5,940		6,740
Total fixed charges		31,705		21,812		15,995		46,471		42,943
Earnings:
Income from continuing operations before income taxes		147,361		146,976		144,061		58,755		93,409
Earnings available to cover fixed charges	$	179,066	$	168,788	$	160,056	$	105,226	$	136,352
Ratio of earnings to fixed charges		5.6		7.7		10.0		2.3		3.2
Deficiency in earnings required to cover fixed charges	$	—	$	—	$	—	$	—	$	—