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Fortress Door / Window Contact Sensor
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Fortress Door / Window Contact Sensor

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SKU: fortress-contact-guardian-safeguard
  • No Contract
    or Monthly Charges
  • 3 Year
  • 30 Day
    Satisfaction Guarantee
  • Description
  • Specifications
  • Features

This sensor is a magnetic contact sensor for doors, windows, and other entry points. When the magnet and the sensor are separated, the sensor sends a wireless signal to trigger the alarm. When you mount one piece on the door or window, and the other piece on the frame, the sensor will activate whenever the door or window is opened. For best performance, you should not mount this sensor directly on a metal surface. The sensor and the magnet should be no further than ¼ inch apart when the door or window is closed. When applying the adhesive tape, make sure that you are mounting on a clean, flat, dry surface.A starter battery is included with the sensor, and we offer additional 23A batteries for purchase on our web site.

  • One “23A” 12-Volt battery
  • 433MHz wireless signal
  • ~ 150 ft. range, with line of sight
  • LED light flashes for 1-2 seconds to indicate activity
  • LED lights up solid to indicate a low battery
  • Magnetic sensor protects doors, windows, and other entry points
  • Ready To Arm - system knows if a door or window is left open
  • Mount on a clean, flat, dry surface. Place a spacer between the sensor and any metal surfaces.
  • LED light shows activity and low battery warning

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Fortress Door / Window Contact Sensor Description

The Fortress Door / Window Contact Sensor is a magnetic contact sensor that detects when a door or window is opened. This contact is compatible with the S1, S03, S6, Vea, Ani, and Stand-Alone Alarms.

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ratings 4.7 Overall Satisfaction Rating Based on 374 Ratings from Actual Customers
review rating
Carl K

Easy and simple

Verified Customer
review rating
Paul k

Can't remeber how many times I've had to get new cards and moths at a time service is not working but still getting charged. This will likely be my last time trying to keep my system working

Verified Customer
review rating
Any U

Awesome Customer Service! I have not really put the alarm system to the full test yet but these folks have the best customer service I think I have ever encountered in online purchases. And..... this a real review :)

Verified Customer
review rating
Robert H

Overall good site to get info and details. A little frustration when I tried to add an additional item to the cart. The system added a second main unit and the new item as separate orders. A few cancellations and re-tries and I was able to do it.

Verified Customer
review rating
Jose V

It was hard to get to the accessories and keep track of where you were in the shopping cart

Verified Customer
Fortress Door / Window Contact Sensor

Does this work with my GSM 3G 4G Wireless unit


Hello, this will work with your Vea GSM 3g/4g system. Thank you, Cecilia.


Could you let us know the dimensions of each part of the sensor please? Thanks


Hi, Mickey, The larger half of the sensor (the transmitter) is 7 cm tall by 2 1/2 cm wide, and has a depth of 1 3/10 cm. The smaller half of the sensor (the magnet) is 5 cm tall by 1 cm wide, with a depth of 1 3/10 cm. Thanks, Amanda, Fortress Security Store


i would like to add a door contact to my shed. My only concern is the winter temperatures can drop down into the single digits. Will that affect the contact?


Hi Patrick, As long as the temperature doesn't deep in the negatives then the door contact should still work great in the shed. Thanks, Jessica