The sensor can t actually control your garage door like the chamberlain myq garage 55 at amazon door opener but whereas the chamberlain smart garage is 130 roost s sensor is only 40.
Garage door closed sensor.
These sensors are only active on the down cycle and have no effect on a garage door opener when it is going up.
The working of these sensors is quite simple.
It prevents the doors from automatically closing when anyone is in the doorway.
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Garage door sensors are safety mechanisms that won t allow the door to close if something is blocking their beam of light.
The garage door sensors are the safety add on to your garage doors.
This safety feature was made standard in the early 1990s to avoid unnecessary injuries.
With some garage door open monitor examples the indicator unit plugs into a wall outlet.
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.