Contact Tachometers | McMaster-Carr

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	Tachometer Type Tachometer Type	Show

Contact

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Contact

Noncontact

	Scale Scale

	Measures Measures

Speed

Distance

	Power Source Power Source

Battery

Mechanical

	Minimum Measuring (Velocity) Minimum Measuring (Velocity)

	Maximum Measuring (Velocity) Maximum Measuring (Velocity)

	Housing Material Housing Material

Plastic

Aluminum

Steel

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

DFARS Specialty Metals
COTS-Exempt

	Battery Size Battery Size

	Maximum Measuring Distance Maximum Measuring Distance

6 1/2 ft.

20 ft.

25 ft.

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

RoHS Compliant

	Depth Depth

2 1/2"

	Height Height

	Width Width

	Rotation Direction Rotation Direction

Clockwise

Counterclockwise

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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36 Products

High-Accuracy Digital Contact Tachometers with Certificate of Calibration

Accurate to within ±0.006% of reading, these tachometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. Contact tachometers come in direct contact with the object measured and are an excellent choice for dirty and dusty environments.

Note: Units are calibrated to work with either a 6" or 12" circumference speed wheel but not both.

Choose tachometer with LCD for use in bright light.

Choose tachometers with LED for use in dimly lit areas.

0.1-25,000 rpm Measuring Range (±0.006% Accuracy)
Display Type	Includes	Scale	Batteries Included		Each
LCD	6" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Two Measuring Tips for Shafts with Center Hole	cm, ft., ft./hr, ft./min, in., in./min, m, m/hr, m/min, mph, rph, rpm, Total Revolutions, yd., yd./hr, yd./min	Yes	00000000	0000000
LCD	12" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Two Measuring Tips for Shafts with Center Hole	cm, ft., ft./hr, ft./min, in., in./min, m, m/hr, m/min, mph, rph, rpm, Total Revolutions, yd., yd./hr, yd./min	Yes	00000000	000000
LED	6" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Two Measuring Tips for Shafts with Center Hole	cm, ft., ft./hr, ft./min, in., in./min, m, m/hr, m/min, mph, rph, rpm, Total Revolutions, yd., yd./hr, yd./min	Yes	00000000	000000
LED	12" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Two Measuring Tips for Shafts with Center Hole	cm, ft., ft./hr, ft./min, in., in./min, m, m/hr, m/min, mph, rph, rpm, Total Revolutions, yd., yd./hr, yd./min	Yes	00000000	000000

Replacement AA Batteries (Pkg. of 4)	Pkg.	00000
Optional Carrying Case	Each	00000
12" Circumference Grooved Speed Wheel	Each	000000
3 1/2" Extension Shaft	Each	00000
1/2" Dia. Measuring Tip for Shafts with Center Hole	Each	0000
12" Circumference Smooth Speed Wheel	Each	00000
3/4" Dia. Measuring Tip for Flat-End Surfaces	Each	00000
1 1/4" Dia. Measuring Tip for Shafts with Center Hole	Each	00000
3/4" Dia. Measuring Tip for Shafts with Center Hole	Each	00000
1/2" Dia. Measuring Tip for Flat-End Surfaces	Each	0000
6" Circumference Grooved Speed Wheel	Each	00000
6" Circumference Smooth Speed Wheel	Each	00000

Digital Contact Tachometers

Measure speed on an easy-to read digital display. Contact tachometers come in direct contact with the object measured and are an excellent choice for dirty and dusty environments.

Measuring Range, rpm	Accuracy	Display Type	Includes	Scale	Batteries Included		Each
0.5-19,999	±0.05%	LCD	4" Speed Wheel, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	ft./min, m/min, rpm	Yes	0000000	0000000

Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.
Measuring Tip for Shafts with Center Hole	0000000	Each
4" Circumference Speed Wheel	0000000	Each
Measuring Tip for Shafts with Flat-End Surfaces	0000000	Each

Digital Contact Tachometers with Certificate of Calibration

This tachometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. Measure speed on an easy-to read digital display. Contact tachometers come in direct contact with the object measured and are an excellent choice for dirty and dusty environments.

Measuring Range, rpm	Accuracy	Display Type	Includes	Scale	Batteries Included		Each
0.5-19,999	±0.05%	LCD	4" Speed Wheel, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	ft./min, m/min, rpm	Yes	0000000	0000000

Measuring Tip for Shafts with Center Hole	0000000	Each	000000
4" Circumference Speed Wheel	0000000	Each	00000
Measuring Tip for Flat-End Surfaces	0000000	Each	00000
Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.	0000

Surface Contact Tachometers

Place against enclosures of rotating equipment to measure speed. This tachometer is an excellent choice for dirty and dusty environments. The reeds are precision calibrated and arranged in two easy-to-read rows. Also known as a reed tachometer.

Measuring Range, rpm	Accuracy	Ht.	Wd.	Dp.	Power Source		Each
1,000-4,000	±0.5%	3"	2"	2 1/2"	Mechanical	000000	0000000

Dial Contact Tachometers

In addition to taking rpm measurements, you can monitor rpm variance on the dial. Contact tachometers come in direct contact with the object measured and are an excellent choice for dirty and dusty environments.

Use the optional extension shaft to access hard-to-reach areas.

Measuring Range, rpm	Accuracy	Rotation Direction	Includes		Each
0-4,000	±5%	Clockwise, Counterclockwise	Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	000000	0000000

Optional 12" Extension Shaft	000000	Each	000000
Replacement Tips (One for Shafts with Center Hole, One for Flat-End Surfaces)	000000	Set	00000

High-Accuracy Contact/Noncontact Tachometers

Accurate to within ±0.006% of reading. Switch these tachometers from contact to noncontact mode by attaching the included adapter. They come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. All have a 1/4”-20 female threaded bushing for tripod mounting.

Choose tachometers with LCD for use in bright light.

Choose tachometers with LED for use in dimly lit areas.

Tips measure the rotational speed of shafts and other spinning objects. Tips for flat-end surfaces are often used with pulleys and circular saws. They have a concave surface to fit flush over bumps, such as screw heads. Tips for shafts with center hole are cone-shaped, so they’ll fit the inner diameter of different hole sizes.

Speed wheels measure the length and speed of conveyor belts, bolts of fabric, and material on spools. They have a grooved edge to fit over wire, cable, and cords.

6-99,999 rpm Measuring Range (±0.006% Accuracy)
Display Type	Includes	Max. Measuring Distance, ft.	Scale	Batteries Included		Each
LCD	6" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	20	ft., ft./min, in., in./min, m, m/min, rpm, yd., yd./min	Yes	00000000	0000000
LCD	12" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	20	ft., ft./min, in., in./min, m, m/min, rpm, yd., yd./min	Yes	00000000	000000
LED	6" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	20	ft., ft./min, in., in./min, m, m/min, rpm, yd., yd./min	Yes	00000000	000000
LED	12" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	20	ft., ft./min, in., in./min, m, m/min, rpm, yd., yd./min	Yes	00000000	000000

1/2" Dia. Measuring Tip for Flat-End Surfaces	00000000	Each	00000
Reflective Tape Roll (5 ft. Lg. × 1/2" Wd.)	0000000	Each	00000
1/2" Dia. Measuring Tip for Shafts with Center Hole	00000000	Each	0000
1 1/4" Dia. Measuring Tip for Shafts with Center Hole	00000000	Each	00000
6" Circumference Smooth Speed Wheel	00000000	Each	00000
12" Circumference Smooth Speed Wheel	00000000	Each	00000
Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.	0000
Reflective 1/2" Sq. Tape Tabs (Sheet of 35)	00000000	Each	0000
3/4" Dia. Measuring Tip for Shafts with Center Hole	00000000	Each	00000
Optional Carrying Case	00000000	Each	00000
Replacement Contact Mode Adapter	00000000	Each	00000
3/4" Dia. Measuring Tip for Flat-End Surfaces	00000000	Each	00000
3 1/2" Extension Shaft	00000000	Each	00000
6" Circumference Grooved Speed Wheel	00000000	Each	00000

Contact/Noncontact Tachometers

Capture high-speed readings from a distance in noncontact mode or use the speed wheel to switch to contact mode. This tachometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It has a 1/4"-20 female threaded bushing for tripod mounting.

BNC cable (sold separately) sends signals from the tachometer to a data collector.

Measuring Range, rpm		Accuracy
Contact	Noncontact	Contact	Noncontact	Max. Measuring Distance, ft.	Display Type	Includes	Scale	Batteries Included		Each
0.5-20,000	5-200,000	±0.05%	±0.01%	25	LCD	4" Speed Wheel, 1/4"-20 Female Threaded Bushing, 5 ft. Reflective Tape, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole	cm/hr, cm/min, cm/sec, ft./hr, ft./min, ft./sec, in./hr, in./min, in./sec, m/hr, m/min, m/sec, rph, rpm, rps, yd./hr, yd./min, yd./sec	Yes	00000000	0000000

Reflective Tape Roll (5 ft. Lg. × 1/2" Wd.)	0000000	Each	000000
Reflective 1/2" Sq. Tape Tabs (Sheet of 35)	00000000	Each	0000
BNC Cable	00000000	Each	00000
Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.	0000

Contact/Noncontact Tachometers with Thermometer

Take speed and temperature measurements. This tachometer has a contact tip on one end and a noncontact sensor on the other.

Measuring Range, rpm
Contact	Noncontact	Accuracy	Max. Measuring Distance, ft.	Display Type	Includes	Scale	Temp. Measuring Range, °F	Batteries Included		Each
0.5-20,000	10-99,999	±0.05%	6 1/2	LCD	4" Speed Wheel, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole, 24" Reflective Tape	ft./min, m/min, rpm	-4° to 600°	Yes	0000000	0000000

Reflective 1/2" Sq. Tape Tabs (Sheet of 35)	00000000	Each	00000
Measuring Tip for Shafts with Flat-End Surfaces	0000000	Each	00000
Measuring Tip for Shafts with Center Hole	0000000	Each	00000
Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.	0000
4" Circumference Speed Wheel	0000000	Each	00000
Reflective Tape Roll (5 ft. Lg. × 1/2" Wd.)	0000000	Each	00000

Contact/Noncontact Tachometers with Thermometer and Certificate of Calibration

This tachometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It takes both speed and temperature measurements. This unit has a contact tip on one end and a noncontact sensor on the other.

Measuring Range, rpm
Contact	Noncontact	Accuracy	Max. Measuring Distance, ft.	Display Type	Includes	Scale	Temp. Measuring Range, °F	Batteries Included		Each
0.5-20,000	10-99,999	±0.05%	6 1/2	LCD	4" Speed Wheel, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole, 24" Reflective Tape	ft./min, m/min, rpm	-4° to 600°	Yes	0000000	0000000

Measuring Tip for Shafts with Flat-End Surfaces	0000000	Each	000000
4" Circumference Speed Wheel	0000000	Each	00000
Reflective Tape Roll (5 ft. Lg. × 1/2" Wd.)	0000000	Each	00000
Replacement AA Batteries (Pkg. of 4)	00000000	Pkg.	0000
Measuring Tip for Shafts with Center Hole	0000000	Each	00000
Reflective 1/2" Sq. Tape Tabs (Sheet of 35)	00000000	Each	0000