This safety feature was made standard in the early 1990s to avoid unnecessary injuries.
Garage door closed sensor.
While we can all appreciate these sensors they can become a nuisance if they start to malfunction.
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.
It is a beneficial device if you have kids or pets in your house.
The garage door sensors are the safety add on to your garage doors.
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These sensors are only active on the down cycle and have no effect on a garage door opener when it is going up.
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.