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Fortress S02 Door / Window Contact Sensor
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All pictures shown are for illustration purposes only. Actual product may vary due to product enhancement.

Fortress S02 Door / Window Contact Sensor

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SKU: S02Contact
  • 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
  • Top LED light flashes for 1-2 seconds to indicate activity
  • Bottom LED lights up solid to indicate a low battery
  • Magnetic sensor protects doors, windows, and other entry points
  • Mount on a clean, flat, dry surface. Place a spacer between the sensor and any metal surfaces.
  • 2 LED lights - Activity Light and Low Battery Indicator Light

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Fortress S02 Door / Window Contact Sensor Description

The basic building block of the S02 and GSM Alarm Systems, contact sensors are designed to detect a window or door being forced open. The most likely method of forced entry into a home or office is via a door or windows. That's why it's so important to have contact sensors attached to the windows and doors on at least the ground floor of your home. These totally wireless sensors contain a small battery and transmit data electronically to the main control panel.

Purchase this accessory at the same time as an alarm package and we will program everything for you!

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ratings 4.7 Overall Satisfaction Rating Based on 374 Ratings from Actual Customers
review rating
Vyshnav R


Verified Customer
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Nathan B


Verified Customer
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Jose H

well i like the new system but some options aren't available like auto arm to in home mode ,now auto is only in away mode,was easy to just give that option like give the user to chose what sensor will be in the auto arm :) ,(auto disarm only the front door or auto disarm the window you open every morning without compromise all other areas-pretty smart ah) ,hoping that there have an 'firmware update' available for the system via pc plug from the power like the phones are(the same systems for years with firmware update with more option for a couple bucks more profit more option for the user :),it will be so awesome you know let to be open project with multiple option in "expert advance mode" also with extended battery option as accessory,set setting via pc :),if all forums talk about system that can be set as you wish is a system killer to all other out there.. just dreams :P

Verified Customer
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Excellent customer service.

Verified Customer
review rating

Purchased an alarm system about two years ago and got it sitting in a closet. Finally installed it today and its in complete working order. Was easy to install and programming was not lost. Excellent system.

Verified Customer
Fortress S02 Door / Window Contact Sensor

will these work with the s6 titan panel?


Hello Michael, Yes those contacts are compatible with the S6 Titan Panel. Thanks, Jessica Customer Service Manager


Are these compatible with the S03


Hello Wynn, Yes, those contacts are compatible with the S03. Thanks! Jessica Fortress Security Store


Are these compatible with almond 2015


Hi, Chris, Thanks for your question! These sensors are meant to be used in conjunction with one of our security systems, and are not compatible with smart home appliances. Regards, Amanda, Fortress Security Store