Extech RPM33 Combination Contact/Laser Photo Tachometer

Extech RPM33 Combination Contact/Laser Photo Tachometer


The Extech RPM33 quickly measures RPM, surface speed, and length.


  • Stores/recalls 10 data sets in memory with 4 parameters
  • Laser guided for greater distance non-contact measurements
  • Provides wide RPM
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Why Buy From Fondriest?


Quickly measure RPM, surface speed, and length with one tool. The Extech RPM33 provides wide RPM (photo and contact) and linear surface speed/length (contact) measurements. The instrument is laser guided for greater distance non-contact measurements up to 1.6 feet. Conduct contact RPM for flywheels, conveyors, pumps, and elevators, and non-contact RPM for motors, fans, and gears.

Notable Specifications:
  • Photo mode range (rpm) : 2 to 99,999rpm
  • Photo mode accuracy: 0.05% rdg +1 digit
  • Contact mode range: 2 to 20,000rpm
  • Contact mode surface speed: 0 to 78,720 inches/min, 0 to 6560 ft/min, 0 to 2186 yards/min, 0 to 2000 m/min
  • Contact mode length: 3.9 to 39370 inches, 0.3 to 3280 feet, 0.1 to 1093 yards, 0.1 to 1000 meters
  • Contact mode frequency: 333 Hz
  • Contact mode accuracy: 0.05% rdg +1 digit
  • Sampling time: 0.5 Sec > 120rpm
  • Resolution: 0.1rpm (< 10,000 rpm); 1rpm (> 10,000 rpm)
  • Dimensions/weight: 6.2 x 2.3 x 1.6”(160 x 60 x 42 mm) / 5.3oz (151g)
What's Included:
  • (1) Tachometer
  • (1) Contact wheel
  • (1) 9V battery
  • (1) Reflective tape
  • (1) Soft case
Image Part # Product Description Price Stock Order
Extech RPM33 Combination Contact/Laser Photo Tachometer RPM33 Combination contact/laser photo tachometer
Drop ships from manufacturer
Extech RPM33 Combination Contact/Laser Photo Tachometer RPM33-NIST Combination contact/laser photo tachometer, NIST traceable
Drop ships from manufacturer

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