Universal 3-Zone Sensor – Two-Way Wireless


This universal sensor has 1 built-in reed switch plus 2 external zone inputs (open or closed circuit) which allows it to secure up to 3 doors, windows, etc. It also features Elk’s industry leading two-way technology.


Product Details

  • Compatible with ELK-M1XRFTWM two-way wireless transceivers
  • Zones: Built-in reed, IN1, and IN3 (external contact terminals)
  • Front and back tamper option
  • 902 Mhz - 928 Mhz frequency hopping
  • Maximum operating gap of reed: 1/2”
  • 3V CR123A lithium battery
  • Battery Life: 7 years typical
  • Size: 1.5”W x 3”L x .9”D, Magnet: .57”W x 1.5”L x .6”D


  • Universal Door/Window Wireless Sensor
  • Magnet
  • Replaceable 3V Lithium battery
  • Tamper Switch
  • 4 #4 x ½” Flat Head Sheet Metal Screws
  • Double Sided Tape for both transmitter and magnet
  • Instructions

Locate an ELK Authorized Distributor Near You!

For more infomation, call ELK at (800) 797-9355.

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