The doorbell switch now activates the garage door opener and the light comes on when the door opens whole thing runs off the existing door bell transformer using repurposed 4 conductor telephone corded.
Garage door warning system.
Simply place the sensor on the top panel of your garage door to be informed when the garage is even partially open.
I have 2 of these modified switches one by the front door and one by the rear allowing me to open and monitor the garage door from either spot.
The garage door sensor can also send you alerts whenever the garage opens or closes.
This chamberlain garage door sensor notifies you if it is open or closed no matter which corner of the house you are in.
The skylink gs mt wireless garage door sensor will the skylink gs mt wireless garage door sensor will track the garage door opened or closed status and send a push notification to your smartphone with any change in status.
When you leave your garage door open the sensor automatically sends a signal to the monitor and a garage door alarm flashes a red light indicating that the door is open.
The mechanism of the device is quite simple.