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SecureLinc Wireless Door/Window Sensor

For the SecureLinc Wireless Home Security System

Item # 72673953

This item is no longer available.

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Our take on the SecureLinc Wireless Door/Window Sensor

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

What's in the Box:

  • 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

Hands-on research

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

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.