Calibrated Timers | McMaster-Carr

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	Certification Certification

Calibration Certificate
Traceable to NIST

	Timing Functions Timing Functions

	Maximum Timer Duration Maximum Timer Duration

	Power Source Power Source

Battery

	Resolution Resolution

1 sec.

1 min.

1/100 sec.

	Number of Displays Number of Displays

	Maximum Alarm Duration Maximum Alarm Duration

15 sec.

1 min.

Continuous

	Case Color Case Color

	White		Black
	Red		Silver
	Yellow

	Maximum Number of Events Maximum Number of Events

	Battery Size Battery Size

AAA

1.5V

	Batteries Included Batteries Included

Yes

	Height Height

	Case Material Case Material

Plastic

Metal

	Width Width

	Depth Depth

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Lens Material Lens Material

Plastic

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About Timing Functions

Style Q timers have an extra-loud alarm that can be heard over background noise in a typical manufacturing environment.

Timers with a calibration certificate traceable to NIST have been tested to NIST standards to ensure accuracy.

Timers with a memory function automatically return the display to the last programmed time. Good for timing repetitive intervals.

									Case
Style	Timing Functions	Max. No. of Events	Max. Timer Duration	Max. Alarm Duration	Resolution	Ht.	Wd.	Dp.	Material	Color	Backing Type	Batteries Included	Features		Each
Timers with Calibration Certificate Traceable to NIST
E	Count Up Count Down Pause	1	9,999 min.	Continuous	1 min.	2"	3"	5/8"	Plastic	Red	Magnetic	Yes	Alarm Built-In Stand Memory Function	0000000	000000
E	Count Down	1	100 hrs.	1 min.	1 sec.	2"	3"	5/8"	Plastic	Red	Magnetic	Yes	Alarm Built-In Stand Memory Function	00000000	00000
J	Count Up Count Down Clock	2	3,000 days	15 sec.	1/100 sec.	2 7/8"	5"	7/8"	Plastic	Silver	__	Yes	Built-In Stand	00000000	00000
N	Count Up Count Down Pause	1	100 min.	1 min.	1 sec.	2 1/4"	2 1/2"	1/2"	Plastic	Black	Magnetic	Yes	Alarm Built-In Stand	0000000	00000
P	Count Up Count Down Pause Clock	2	24 hrs.	1 min.	1 sec.	2 1/8"	2 3/4"	7/8"	Plastic	Black	Magnetic	Yes	Alarm Built-In Stand Memory Function	0000000	00000
Q	Count Up Count Down Pause	2	100 hrs.	1 min.	1 sec.	3"	3 1/2"	5/8"	Plastic	White	Magnetic	Yes	Alarm Built-In Stand Memory Function	0000000	00000
R	Count Up Count Down Pause Clock	3	20 hrs.	1 min.	1 sec.	3 7/8"	2 5/8"	1"	Plastic	Black	__	Yes	Alarm Memory Function	0000000	00000
S	Count Up Count Down	1	100 hrs.	1 min.	1 sec.	2"	1 1/2"	3/4"	Plastic	White	Magnetic	Yes	Alarm Clip Keychain Ring	00000000	00000
T	Count Up Count Down	1	100 min.	1 min.	1 sec.	2 3/4"	3"	1"	Plastic	White	__	Yes	Alarm Built-In Stand	00000000	00000
U	Count Up Count Down	1	100 min.	1 min.	1 sec.	3 1/4"	3"	1/2"	Plastic	White	__	Yes	Alarm Built-In Stand Memory Function Suction Cups Waterproof	00000000	00000
V	Count Down	3	100 hrs.	1 min.	1 sec.	3 1/4"	2"	1/2"	Plastic	White	Magnetic	Yes	Alarm Built-In Stand Memory Function	00000000	00000
W	Count Up Count Down	1	24 hrs.	1 min.	1 sec.	3 1/4"	2 1/2"	1/2"	Plastic	White	__	Yes	Alarm Built-In Stand Memory Function Repeat Function Voice Alerts	00000000	00000

Stopwatches

These stopwatches are water resistant.

Stopwatches with a calibration certificate traceable to NIST have been tested to NIST standards to ensure accuracy.

Optional clipboards have a clamp to hold Style A stopwatches and a clip to hold paper.

					Case
Style	Timing Functions	Max. Timer Duration, hrs.	Accuracy	Max. No. of Laps Stored	Material	Color	Lens Material	Batteries Included	Features	Includes		Each
Stopwatches with Calibration Certificate Traceable to NIST
A	Count Up, Split, Lap	10	±0.02 sec./hr.	16	Plastic	Black	Plastic	Yes	__	Lanyard	0000000	000000
D	Count Up, Split, Lap, Pause, Clock	24	±0.04 sec./hr.	__	Plastic	Black	Plastic	Yes	Alarm	Lanyard	0000000	00000
E	Count Up, Split, Pause, Clock	24	±0.4 sec./hr.	__	Plastic	Yellow	Plastic	Yes	Alarm	Lanyard	0000000	00000

Optional Aluminum Clipboard for Style A (9" Wd. × 12 1/2" Lg.)

0000000

Each

000000

Analog Stopwatches

Metal

Record one event from start to finish. These stopwatches have an inset dial that measures total time.

Stopwatch with a calibration certificate traceable to NIST has been tested to NIST standards to ensure accuracy.

Stopwatches with Calibration Certificate Traceable to NIST
Timing Functions	Max. Timer Duration, min.	Accuracy	Case Material	Lens Material		Each
Count Up, Pause	30	±1.5 sec./hr.	Chrome-Plated Metal	Plastic	0000000	0000000