Liftmaster 836LM
Permiter Alert Sensor
Detects motion of pedestrians and vehicles when they approach your home and property. Box contains 1 sensor unit, and mounting bracket and hardware.
- 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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