Extech 461825 Combination Photo Tachometer/Stroboscope

Extech 461825 Combination Photo Tachometer/Stroboscope


The Extech Combination Photo Tachometer/Stroboscope analyzes rotating objects and accurately measures rpms.


  • Tachometer memory stores last, max and min readings
  • Battery operation brings motion analysis to any location
  • 2 meters in one
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The Extech Combination Photo Tachometer/Stroboscope combines two meters into one to measure rpms and analyze rotating objects. The meter features a unique display when characterrs reverse direction depending on the measurement mode. The microprocessor is based with quartz crystal oscillator to maintain high accuracy. The tachometer memory stores the last maximum and minimum readings, and performs RPM measurements. The stroboscope performs speed and motion analyses and includes course and fine flash rate adjustments in three ranges. The meter is battery operated making it easy to transport for field use in any location.

Notable Specifications:
  • Photo range RPM: 0.5 to 20,000
  • Strobe range RPM: 5 to 99,999
  • Accuracy: +/-(0.1% +2digits)
  • Surface speed: 0.2 to 6560 ft/min
  • Photo sampling time: 1 sec> 6 RPM
  • Strobe sampling time: 1 sec> 60 RPM
  • Photo resolution: 0.1 RPM (< 1,000 RPM) 1 RPM (≥ 1,000 RPM)
  • Strobe resolution: 0.1 FPM (< 1,000 FPM) 1 FPM (≥ 1,000 FPM)
  • Power: 4 x 1.5V AA Batteries
  • Dimensions: 8.5 x 2.6 x 1.5" (215 x 65 x 38mm)
  • Weight: 10.6oz (300g)
  • Warranty: 1 year
What's Included:
  • (1) Meter
  • (4) 1.5V AA batteries
  • (1) Carrying case
  • (1) Reflective tape
Image Part # Product Description Price Stock Order
Extech 461825 Combination Photo Tachometer/Stroboscope 461825 Combination photo tachometer and stroboscope
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Extech 461825 Combination Photo Tachometer/Stroboscope 461825-NIST Combination photo tachometer and stroboscope, NIST traceable
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Image Part # Product Description Price Stock Order
Extech 461937 Spare reflective tape (23" each strip), 10 pack
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