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836LM – Extra Sensor – Perimeter Alert

Detects motion of pedestrians and vehicles when they approach your home and property. Box contains 1 sensor unit, and mounting bracket and hardware.
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  • To be used with the LiftMaster® Perimeter Alert (835LM)
  • Detects motion up to 30 feet away with wide 120 degree coverage
  • Transmits signal to base up to 1/2 mile away
  • Features adjustable sensitivity control to prevent false alerts from small animals
  • Durable, weatherproof design
  • Connect 1 base station with up to 4 motion sensors
  • Easy to install and use
  • Requires four AA batteries
  • 1-year warranty

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