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REED K4020-230V Stroboscope

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The REED K4020-230V digital stroboscope freezes the motion and measures the speed of a rotating object, without contact.

Ideal Applications for the REED K4020-230V

  • Measure RPM
  • Machinery Observation
  • Vibration Monitoring

Authorised Australian Distributor

1 Year Warranty

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SKU: REED K4020-230V Category: Tags: ,

REED K4020-230V Offers


  • Digital strobocope freezes the motion and measures the speed of a rotating object, without contact
  • Simply aim and synchronize the strobe’s flash rate (fpm) with the speed (rpm) of the object
  • Direct reading of RPMs
  • Exclusive one-chip micro-computer LSI circuit and crystal control time-base assures accuracy of ±1%
  • 4-digit, 0.3″ high LED display
  • Duty cycles from 5 to 30 minutes (depending on RPM range)
  • Tripod mountable
  • AC operated
  • Plastic injection case. Plastic lens. Mirror type reflector.

REED K4020 – 230V Specifications

Flash/Speed Rate 100 to 10,000 fpm/rpm
Resolution 1 fpm/rpm
Accuracy ±1% (100 to 5000 fpm/rpm)
±0.05% (over 5000 fpm/rpm)
Sampling Time 1X/second
Power Supply 230V AC ±15%, 50/60 Hz
Dimensions 201 x 120 x 120 mm)
Weight 1 kg

 Wikipedia Definition

 A stroboscope also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces brief repetitive flashes of light. Usually the rate of the stroboscope is adjustable to different frequencies. When a rotating or vibrating object is observed with the stroboscope at its vibration frequency (or a submultiple of it), it appears stationary. Thus stroboscopes are also used to measure frequency.


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