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Ultrasonic radar module

Velleman VM125: Ultrasonic Radar Module

Velleman VM125

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The Velleman VM125 Ultrasonic Radar Module (Velleman Module No Soldering Required)

Give your robot eyes. There are so many uses for this small module; it's great for security, object detection, distance measuring, parking assistance and much more. The VM125 measures between 0.66 and 8.2 feet and operates at a frequency of 40 kHz. With four different outputs, this radar is sure to meet your needs. The three on-board LEDs give you distance indication and there is also and LED alarm indicator. You can adjust the alarm distance.



  • Digital output 5 Volts 50mA max.
  • Analog output 0 to 5 volts 5mA max.
  • Buzzer output 12 volts 100mA max. fast/slow or continuous
  • Relay contacts 1A low voltage normally open/normally closed
  • Requires 12 volts DC and uses 200 mA (power supply sold separately)
  • Small footprint 4.3” x 2.0” x 0.7”
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Info Sheets

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product