Garage Door Closed Sensor

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Garage door closed sensor.

The working of these sensors is quite simple. Receiver indicator picks up a signal from the sensor and tells you by way of colored led s and perhaps a beep the current state of your garage door it s open or it s closed. It prevents the doors from automatically closing when anyone is in the doorway. The garage door sensors are the safety add on to your garage doors.

The sending sensor shoots out an invisible beam which needs to make a connection with the receiving sensor in order to complete the circuit which allows the garage door opener to close. With some garage door open monitor examples the indicator unit plugs into a wall outlet. It is a beneficial device if you have kids or pets in your house. These sensors are only active on the down cycle and have no effect on a garage door opener when it is going up.

This safety feature was made standard in the early 1990s to avoid unnecessary injuries.