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Functionality The Recessed Door Sensor is made up of two pieces: a magnet and a transmitter, which you install in your door and frame, making the sensor almost invisible. The sensor works by transmitting an open signal whenever the two pieces are separated by at least ¾ inch and transmitting a closed signal whenever they are brought within ¾ inch. |
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Specifications Manufacturer/Model Number: Interlogix TX-E221 SKU: Door Sensor - Recessed 2.0 Dimensions: Transmitter: 0.75" x 2.50” Magnet: 0.75" x 0.50" Weight: 1.4 oz Battery: 1xCR2 Battery Life: 3-5 Years Compatibility: Simon XT Panel, IQ Panel, Frontpoint Hub Temperature Range: 32°F to 120°F |
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Tamper: Tamper switch is a black switch located on the circuit board that gets depressed by the cover. How to Tamper: Pop the cover open. |
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Mounting
***Before you start, make sure you have the following handy: electric drill with a ¾-inch spade drill bit suitable for the material of your door, a ruler or straight edge, masking tape and a pencil.***
- Choose the location near the top of the door on the handle side to install the sensor. Use a ruler and a pencil to mark the location. This will ensure that the transmitter and magnet will be aligned when the door is closed.
- Open the door and transfer the line to the inside of the frame and the side of the door. Measure the frame and side of the door and mark the middle to create a crosshair where the transmitter and magnet will be installed. This will ensure that the pieces are being installed on the centerline of the frame and door.
- Measure 2 ½-inch from the flat base of the bit’s tip as pictured below and use a piece of masking tape to indicate this measurement. Now, it’s time to drill the hole into the doorframe for the transmitter, stopping the drill when you’ve reached the masking tape. Clear out any sawdust in the hole and insert the transmitter.
If you drill the hole too wide or too deep, we've included an alternative cap that enables you to mount your sensor using screws.
- Drill a hole roughly 3/4" x 1/2" deep into the door for the magnet. Insert the magnet into the hole.
Click here for more details on mounting the Recessed Door Sensor.
"My sensor doesn't look like this"
Click on the image below that matches your sensor:
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