How to install a wireless window alarm

A wireless windows alarm sensor is designed to register a disturbance when its companion sensor plate is no longer making contact. You can install window sensors to use with a wireless burglar alarm without the need for any extra wires or special tools. A tool common to most homes is all that is needed, along with the wood screws which come with the window sensor when it is purchased from a hardware store or security store supplier.

What you will need

- Wood screws
- Phillips screwdriver
- Grease pencil
- Wireless transmitter

First steps

- Decide on a window which is to be protected by the window sensor.
- Slide the window open halfway.
- Remove the backing paper from one side of the window sensor security plate. If there is no backing paper, ignore this step.
- Place the window sensor security plate against the bottom edge of the window. It can be located anywhere along the length of the bottom edge, although typically it is placed at one of the window's two bottom corners.
- Push the plate against the bottom edge so that the adhesive on its side takes hold.
- If there is no adhesive, screw the wood screws through the holes in the plate using the Phillips screwdriver.
- Close the window.
- Draw a horizontal line against the edge of the window where the security plate has been placed. Use a grease pencil for this.
- Raise the window again.
- Remove the backing paper from one side of the window security sensor. If there is no backing paper, ignore this step.

The rest

- Place the window security sensor on the window sill, against the line drawn, so that it sits beneath the plate on the bottom edge of the window.
- Press down on the sensor to attach the adhesive on the side of the sensor to the windowsill. If there is no adhesive, screw the wood screws through the holes in the sensor using the Phillips screwdriver.
- Place a wireless transmitter connected to the wireless network being used by the wireless burglar alarm system against the wall beneath the windowsill.
- Screw the transmitter to the wall with wood screws using a Phillips screwdriver.
- If there is an adhesive back, remove the backing paper and press the transmitter against the wall instead of screwing it on.
- Insert the plug at the end of the cable attached to the window security sensor into the input port on the transmitter.
- Close the window and slide the selector switch on the transmitter to the "On" position. If there is no selector switch, press the "On" button on the transmitter instead. You may also want to look into wireless magnetic door alarms systems and alarms for cars.