How To Remove Embedded Alarm Sensors From Door Frame

Last updated: January 21, 2022


If you want an alarm system, but don’t want to change your door hardware that’s already installed, then it is possible to remove the sensor from your current setup and have a new one put on there. If you are thinking about how to remove embedded alarm sensors from the door frame, this guide is for you. To do this process, you’ll need some basic tools for removal like pliers or wire cutters- depending on what kind of sensors they’re wired into- as well as adhesive remover if applicable.

Most door alarms consist of two parts. The sensor and the magnet work together to create an invisible barrier called a “magnetic field.” The sensor is typically installed on or inside your door frame, while you can mount the magnet either in/on top of your doorway or next to it before connecting them with wire from one end-to-the other. Removing this type of contact depends largely on how they were mounted: if they’re screwed into place, then you’ll need just a screwdriver, but there are also adhesive strips that will require a pair of scissors instead!

Complete the following steps to remove the alarm sensor from your door frame:

Clear the zone. Go to your panel, delete the zone using a system’s Installer Code. This process will be different depending on the type of panel you are using- refer to the instruction manual for more information.

Remove the wires. If you have a wired door alarm sensor, then make sure to disconnect and then remove the wires. This needs to be done both at the panel (wireless) or from inside your home, where it is connected via wire on either side of your doorway. If that sounds like too much work, there are other options for you! We offer wireless alarms with no installation required as well as plug-in sensors which can also go wherever they need to reach their power source without any drilling necessary.”

Take off the sensor. To remove a door sensor, first, take the necessary precautions to avoid damaging your fingers. Next, approach the sensor from one of its sides and pry it loose with either a screwdriver or pliers, depending on where you can see that it is mounted.

Take off the magnet. If you are looking to mount a metal door, the process of removing an adhesive-backed magnet will depend on how it is mounted. If recessed in the door’s surface with double-sided foam tape, gently remove using pry or pull force from both sides. If screw secured installers can be removed by unscrewing them, then reattaching new magnets and screws into place when done,


How do you remove a recessed security sensor from a door frame?

Take off the sensor. 

If your sensor is recessed, you can pry or pull it out of the door frame. If your sensor is surface-mounted with double-sided foam tape, carefully peel off the adhesive and remove it from the doorframe.

How do you remove an alarm sensor?

You can remove an alarm sensor from a door or window by clearing the zone from the panel and removing the sensor and magnet. If you have it wired, then disconnect wires that are connected to your device before unplugging them. The process is very easy!

How Do I Replace Wired Door Alarm Sensors?

  1. Remove the old sensor. With a screwdriver to disconnect the wires from an old sensor. 
  2. Connect the new sensor. Use a screwdriver in order to connect the wires to the new door sensor.
  3. Mount the new sensor. Apply the new sensor on the frame of the door.
  4. Test the new sensor.
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