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Toll Free: 866-265-4824

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Las Vegas: 702.637.2700 Henderson/Boulder City: 702-979-3134 Summerlin/Sun City: 702-637-2555 Toll Free: 866-265-4824 Service within 2 Hours
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We Repair ALL BRANDS of Garage Doors and Openers

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  • 99% of All Repairs Done Within 1 Hour
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  • New Openers Installed Within 2 Hours
  • Emergency Service 24/7

Liftmaster Extra Sensor 836LM

LiftMaster® Perimeter Alert System – Extra Sensor 836LM

Perimeter Alert System

Up to four sensors can be added to a single Perimeter Alert System. One is included with the system. Add up to five additional sensors to completely protect your property from unwanted guests. The perimeter alerts system sensors are durable, weatherproof and come with everything you need to add it to your existing system including mounting bracket and hardware.

Product Features:

  • Must purchase LiftMaster Perimeter Alert System (sold separately)
  • Detects motion up-to 30’ away with wide 120° degree coverage
  • Transmittable up-to a half mile away
  • Adjustable sensitivity control
  • Durable & weatherproof
  • Easy to install & use
  • Requires 4 AA batteries
  • 1 year limited warranty

Perimeter Alert System Manual

Service Within Two Hours Guaranteed!

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