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BM4200 Wireless Door/Window Contact

BM4200 Multi-beam IR Sensors

Product Description

  • Ideal for placements on fences, balconies or by garage doors, smanos BM4200 sensors work wonders in outdoor environments and detect acts of intrusion via invisible infrared beams. Through advanced technology and algorithms, only objects over a certain size would trigger an alarm with an instantaneous alert to your smartphone, minimizing false alarms. Completely wireless and battery-powered, smanos BM4200 stands on guard for you in disguise, and the unique power-saving mode means up to 3 years of care-free, worry-free battery life.


  • Detector infrared beam:
    4 beams
  • Beam transmitter battery:
    2 CR123A batteries
  • Beam receiver battery:
    3 CR123A batteries
  • Standby time:
    3 years
  • Standby mode power consumption:
    beam transmitter < 0.03mA
    beam receiver <0.11mA
  • Alarm mode power consumption:
  • Maximum detection range:
  • Waterproof rating:
  • Wireless frequency:
    915MHz (±75KHz)
  • Wireless transmission distance:
    <80m (open area/no interference)
  • Case material:
  • Size:
    42 x 47 x 612mm
  • Download manual
  • Video
  • FAQ