DIY Autodial Wireless Burglar Alarm System

Open the front door. Place a sensor plate against the inside bottom edge of the door. Screw the plate onto the door with wood screws using a Phillips screwdriver.

Place a sensor reception plate against the bottom inside edge of the door frame -- opposite the sensor plate on the door. Screw the reception plate onto the door with wood screws using a Phillips screwdriver. Close the door.

Turn the alarm transmitter that is attached to the sensor reception plate with wires over. Open the battery compartment lid. Insert a set of batteries into the compartment and close the lid.

Place the transmitter against the wall, next to the door frame. Screw the transmitter to the wall with wood screws using a Phillips screwdriver.

Place the wireless autodial receiver next to the corded telephone. Plug the receiver's power cord into a wall outlet for power.

Press the "Menu" button on the receiver. Follow the instructions provided in the manual to program a number that will be called when the alarm goes off. Follow the instructions provided in the manual to enter a short, recorded message informing the recipient of the call where the call is originating from.

Unplug the modular telephone plug from the base of the corded telephone. Insert the modular telephone plug into the "Tel in" socket on the receiver.

Insert the modular telephone plug at one end of a telephone cord into the "Tel out" socket on the receiver. Insert the other end of the telephone cord into the socket on the base of the corded telephone.

Press the "Sync" or "Syncing" button on the transmitter. Press the same button on the receiver to sync the two together.