Simplisafe Extra Entry Sensor

4.2 out of 5 stars 144 ratings

Available from these sellers.
Original System
  • Easy to install on every type of door or window
  • The magnet goes on the door or window, and the sensor goes on the frame (or vice versa). Magnet can be placed up to 2 inches from the sensor, so sensors fit on all types of doors and windows. SimpliSafe sensors come with the battery pre-installed and adhesive tape pre-applied, making installation a snap.
  • When your system is OFF and a door or window opens, the Base Station will sound a door-chime so you'll know if someone is entering.
  • The sensor detects whenever the magnet moves more than two inches away from it- so it knows whenever the door or window opens.

Product details

Size Name:Original System
  • Batteries : 1 CR123A batteries required.
  • Is Discontinued By Manufacturer : No
  • Product Dimensions : 2.54 x 2.54 x 5.08 cm; 68 Grams
  • Date First Available : 23 February 2014
  • Manufacturer : Simplisafe
  • ASIN : B00ILWJ9B0
  • Item Model Number : 4331030051
  • Customer Reviews:
    4.2 out of 5 stars 144 ratings

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Product description

Size Name:Original System

Simplisafe Extra Entry Sensor Entry Sensors protect doors and windows that may be accessible to intruders. When deciding how many you need, it helps to consider the following: How many of your windows and doors are on a ground floor? Ground floor entry points are typically the most vulnerable in a home and should usually be protected. How many windows and doors are accessible from a balcony, terrace, or fire escape? These entry points are generally less vulnerable than a ground floor window, but are another way intruders may enter a home. You should consider adding a sensor to these entrances. Will you have a Motion Sensor in the room? A Motion Sensor reduces the need for an Entry Sensor at every entry point. 3"X1.25"


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4.2 out of 5 stars
4.2 out of 5
144 global ratings
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Top reviews from other countries

Jeff W.
5.0 out of 5 stars One of the best investments I've made
Reviewed in the United States on 9 October 2016
Size Name: Original SystemVerified Purchase
9 people found this helpful
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Lee & Shayla
4.0 out of 5 stars Crown Molding can be a problem.
Reviewed in the United States on 24 April 2018
Size Name: Original SystemVerified Purchase
6 people found this helpful
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James Y. Bahng
5.0 out of 5 stars Simple and Safe!
Reviewed in the United States on 27 August 2015
Size Name: Original SystemVerified Purchase
25 people found this helpful
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Jack Daniels - MN
5.0 out of 5 stars As expected. Top quality service.
Reviewed in the United States on 22 December 2015
Size Name: Original SystemVerified Purchase
12 people found this helpful
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Thomas E. Lewis
5.0 out of 5 stars Five Stars
Reviewed in the United States on 5 March 2015
Size Name: Original SystemVerified Purchase
10 people found this helpful
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