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REED K4020 Digital Stroboscope, 110V

Model: K4020

REED K4020 Digital Stroboscope, 110V-

Downloads: datasheet
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High accuracy, includes tripod mount for stationary use.

REED K4020 Offers

This digital stroboscope freezes the motion and measures the speed of a rotating object, without contact. The K4020 features flash rate speeds from 100 to 10,000 RPM, a xenon light bulb and bright LED display.


  • Simply aim the instrument at the rotational object and synchronize the strobe's flash rate (FPM) with object speed (FPM)
  • Basic accuracy of ±0.05%
  • 4-digit LED display
  • 5 to 30 minute duty cycle (RPM dependent)
  • Tripod mount for stationary use
  • 6 foot power cord

REED K4020 Specifications

Flash Range 100 to 10,000 RPM
Resolution 1 RPM
Basic Accuracy ±(0.05% + 1 dgt.)
Flash Tube Specifications
Type Xenon lamp
Flash Duration Approx. 60 to 1000 µs
Flash Color Xenon white 6,500°K
Flash Energy 4 Watt-seconds (joules)
Beam Angle 80 degrees
General Specifications
Response Time <1 sec
Sampling Time 1x/sec
Display Size/Type 4 Digit LED Display
Tripod Mount Yes
Power Supply 110VAC, 50/60 Hz
Product Certifications CE
Operating Temperature 32 to 122°F (0 to 50°C)
Storage Temperature -4 to 140°F (-20 to 60°C)
Operating Humidity 10-80%
Dimensions 8.3 x 4.8 x 4.8"  (201 x 120 x 120 mm)
Weight 2.2lbs (1kg)

What's included with the REED K4020

  • Digital Stroboscope
  • Light Bulb
  • Power Cord

Ideal Applications for the REED K4020

Measure speed of moving gears, fans, centrifuges, pumps, motors and other rotational equipment.

Click on a category to view a selection of compatible accessories with the REED K4020 Digital Stroboscope, 110V.

REED K4020-BULB Replacement Xenon Light Bulb

Model: K4020-BULB

For use with the REED K4020, K4020-230V, K4030 and K4030-230V.

REED R8888 Medium Hard Carrying Case

Model: R8888

Professional grade, injection molded hard plastic case with customizable foam inserts.

REED R1500 Lightweight Tripod

Model: R1500

Expandable up to 56" and features an add-on adapter capable of mounting instruments without a tripod mount. The R1500 is a convenient accessory for any data logging instrument setup for long-term continuous monitoring.