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Tachometer, 2RPM to 99999RPM, 160 mm, 0.05 %, 60 mm, 500 mm


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Manufacturer Part No:
Newark Part No.:
Product Range
MR500 Series
Technical Datasheet:
461920   Datasheet
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2RPM to 99999RPM









MR500 Series

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Technical Documents (2)

CAD Downloads


Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Product Overview

The 461920 from Extech Instruments is a mini laser photo tachometer counter. Laser light source used for greater accuracy and longer measuring distance taking non contact RPM measurements. Make safe, non-contact RPM measurements (2 to 99,999 RPM) of rotating objects by pointing the integral laser (1.6ft target distance) at the reflective tape placed on object to be measured. It provides non-contact RPM and count measurements. The laser pointer beam provides accurate long distance measurements for photo tachometer measurements. This meter is shipped fully tested and calibrated and with proper use.
  • Make non contact RPM measurements of rotating objects
  • Use reflective tape on object to be measured and point the integral laser
  • Easy to read large 5 digit LCD display with backlighting
  • Memory button holds last reading and recalls min/max readings
  • Counter function counts up to 99,999 revolutions
  • Rugged double moulded housing for better grip, CE approved
  • Basic accuracy of ±0.05% and resolution of 0.1rpm, 1rev
  • Detecting distance from 2inch to 20inch (50mm to 500mm)
  • Operating temperature range from 32°F to 122°F (0°C to 50°C) and RH 80% maximum
  • Dimension is 6.2inch x2.3inch x1.6inch (160mm x 60mm x 42mm) and weight is 151g


Test & Measurement


461920 mini laser photo tachometer, 9V battery, Reflective tape, User manual.


Do not directly view or direct the laser pointer at an eye.
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