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Tachometer

Tachometer

Product Code : SCL-PLE-11617

Quick Answer: The Tachometer is a non-contact optical meter that measures rotational speed from 2.5 to 99,999 RPM at a distance of 50mm to 500mm from the shaft or disk.

Last updated: October 2026

Key Features

  • Non-contact laser / photoelectric sensing
  • Range 2.5 to 99,999 RPM
  • 0.1 RPM resolution below 1,000 RPM, 1 RPM above
  • Stores maximum, minimum and last readings automatically
  • Quartz crystal time base
  • 5-digit LCD in an ABS case

Technical Specifications

SpecificationValue
Measurement range2.5 to 99,999 RPM
Resolution0.1 RPM (below 1,000 RPM); 1 RPM (above 1,000 RPM)
Accuracy±(0.05% + 1 digit)
SensingNon-contact laser / photoelectric
Detection distance50mm to 500mm (2 to 20 inches)
Sampling time0.8 seconds (above 60 RPM)
Display5-digit LCD
MemoryMax, min and last value
Time baseQuartz crystal
CasingABS

About This Product

Aimed at a marked spot on a rotating shaft, fan or disk, the tachometer gives the speed in revolutions per minute without stopping the machine. Physics and technical students use the readings to calculate angular velocity and rotational kinetic energy, and to compare motor speeds in mechanical engineering practicals.

Frequently Asked Questions

How far from the rotating part can the Tachometer read?

Its detection distance is 50mm to 500mm (2 to 20 inches).

What speed range does it cover?

It reads from 2.5 to 99,999 RPM, with 0.1 RPM resolution below 1,000 RPM and 1 RPM above.

Related: Physics Lab Equipment, Carbon Dioxide Meter (Capnometer) and Combustible Gas Detector.

For a quotation on the Tachometer, contact Educational Instrument.

   
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