This add-on door/window sensor expands the coverage of your SecureLinc Wireless Home Security System. Install the sensor on a door or window, and it'll wirelessly alert the alarm system if an intruder breaks in.

Product Highlights:

  • for use with SecureLinc Wireless Home Security System
  • magnetic contact alerts the alarm system when a door or window is opened
  • UL-listed for safe use in your home
  • auxiliary input to connect additional sensors
  • tamper switch alerts the system when cover is removed
  • alerts the system with low-battery message when replacement required
  • long-lasting lithium battery included
  • 3-3/16"W x 7/8"H x 15/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Wireless Door/Window transmitter
  • Magnetic contact
  • 2 Pan-head screws (Length=3/4")
  • 2 Flat-head screws (Length=1")
  • 2 Wall anchors
  • CR2 Lithium battery (3V)
  • 47 k-ohm resistor
  • Instructions

Product Research


Overview: This wireless door/window transmitter, made by Visonic, is designed for use with advanced, high-security alarm systems, such as the Smarthome SecureLinc Wireless Home Security System (item # 72673903W). It can be used to protect doors and windows using a built-in magnetic contact that operates in conjunction with a magnet to detect the opening and closure of a door or window. It is powered by a replaceable, long-life 3V Lithium battery. The transmitter sends a "low battery" message to the receiver to alert you to change the battery.

Auxiliary Input: The transmitter has an auxiliary hard-wired input, programmable as either NC (normally closed) or EOL (end of line), for use with additional sensors, such as pushbuttons, detectors, door contacts, etc. An on-board DIP switch allows you to disable the magnetic-operated reed switch if only the auxiliary input is needed.

PowerCode: When activated, the magnetic contact and the auxiliary input initiate an individual 24-bit PowerCode ID message, which identifies it to the target receiver as a separate transmitter. Each ID code is randomly selected from 16-million possible combinations, and is therefore unique and virtually impossible to accidentally reproduce. In addition, a smart, anti-collision algorithm prevents signal jamming by simultaneous transmission from multiple devices. Periodic transmission of supervision signals is used to confirm system connectivity at all times.

Tamper Switch: The unit has a tamper switch which is activated when the cover is removed. A tamper report is sent every 3 minutes until the tamper switch is restored.

Supervision Message: A periodic supervision message is transmitted automatically. The target receiver is thus informed, at regular intervals, of the unit's active participation in the system.

LED: An LED lights whenever alarm or tamper events are reported. The LED does not light while a supervision message is being transmitted.


  • Operating Frequency: 315 MHz
  • Power Supply: 3V Lithium battery, CR-2
  • Battery Life Expectancy: 3 years (typical use)

Our Product Research Team

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