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Velleman MK120 Infrared Beam Kit

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Brand: Velleman  MPN: MK120  EAN-13: 5410329333010
  • Country of Origin: Hong Kong
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The infrared beam kit from Velleman will produce an IR light beam that can be used to monitor a doorway, a pathway, an area etc. For the arrival or presence of a person or object.

  • When the light beam is interrupted the kit makes an audible noise (85dB)
  • Uses an IR transmitter emitter to project a beam of infrared light to an IR receiver detector
  • Ideal for home security
  • On/Off switch provided
  • Basic soldering techniques required for circuit board assembly
  • Suitable for beginners with little or no previous knowledge of electronics
  • Not recommended for outdoor use
  • Velleman MK120

Transmitter and receiver both require a 9V PP3 battery (not included).

Please note: This is a self-assembly kit and requires soldering.

Ready Assembled? No
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24 September 2013 Question by: Rapid Customer | Product code: 70-4028
Q. Hi, Does the kit come with detailed building instructions ?
A. Hi Colin. Thank you for your question. Full build instructions are supplied with the kit - see this link for a copy.


Reviewed by: Rik Whittaker - 11 June 2008
This kit is straightforward to build, but the basic craft skill of learning to solder well first is important. The only failures of kits were the pupils inability to follow sequential instructions carefully and not bothering to learn the soldering skills necessary. Time to build - from 45 mins after practice to 3 hours if detailed explanation are needed about components and colour codes, and polarity issues.