Hand-Held Tachometers


The CDT-2000HD Combination Portable Tachometer combines the best features of both contact and non-contact models to accurately measure RPM, surface speed and length.

When using the non-contact mode, rotational speed (RPM) is measured using a visible beam of light. The CDT-2000HD can be up to 24 inches away from the small piece of reflective tape that is affixed to the rotating element. In the contact operating mode, the speed is sensed by directly contacting rotating device using one of the contact adapters supplied with the instrument.

Complete Kit
The CDT-2000HD includes the Tachometer, Slide-In Contact Adapter, 6″ & .1m Surface Speed Wheels, Cone Tip, Funnel Tip, Extension Shaft, Reflective Tape, Two (2) AA Batteries (1.5 V), Calibration Certificate and Operating Instruction Manual — all supplied in a foam-fitted, hard-plastic Carrying Case.

The CDT-2000HD’s rugged construction, portability and outstanding features make It an ideal choice for maintenance personnel, machine operators or others in a wide variety of machinery and material handling applications.

Also known as Fluke 931, Testo 470, Rotaro, TACH-20

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  • Measures speeds from as low as 1.00 rpm up to 99,999 rpm.
  • Accuracy of 0.02% with a resolution of 0.01 RPM.
  • Includes DAkkS Traceable calibration Certificate.
  • Built-in memory stores maximum, minimum, average and last reading for recall to the display.
  • NEW - Molded Rubber Shell Provides Additional Physical & Environmental Protection.
  • NEW - Now includes larger 6 inch circumference Surface Speed Wheel standard.
  • NEW - Can be set for use with 2 optional-sized surface speed wheels (12 inch or 10 cm circumference).


RPM Non-Contact: 1.00 - 99,999 rpm / Contact: 1.00 - 19,999 rpm
Surface Speed 0.30 - 6,500 feet/min
Accuracy ± 0.02% of reading or 1 digit
Display 5 - Digit LCD, 10mm high
Decimal Point Automatic
Memory System Maximum, minimum, and last reading (retained in memory for the life of the batteries)
Sensing Distance Up to 24 inches (60 cm)
Display Update Time 0.5 seconds or one measuring.
Housing Material ABS Plastic housing with removable protective rubber shell
Housing Rating IP40
Warranty 5 years

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