They do this by using an electric eye sensor that crosses the doorway.
Garage door beam sensor.
Garage door sensors protect your family possessions and pets by not allowing the heavy garage door to close if there is anything in the glide path.
Whenever there is an obstruction the garage door will automatically reverse before causing any damage.
The light is emitted from one side of the garage door to a receiving unit on the other side of the door.
The replacement safety sensors project an invisible light beam across the inside of the garage door to prevent accidents and are required for safe use of all chamberlain garage door openers.
The working of these sensors is quite simple.
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Garage door sensors work using an infrared beam of light.
This precaution ensures that the door doesn t close when your car is in the doorway.
When this beam is obstructed by an object of some sort you won t see a solid yellow light and the garage door will immediately quit working.
It is a beneficial device if you have kids or pets in your house.
The genie safe t beam system is designed to ensure maximum safety for your garage door opener operation.
The same mechanism kicks in when other objects are placed near the door too.
It prevents the doors from automatically closing when anyone is in the doorway.
If the path between the sensors is unbroken the door will open and close normally.
The garage door sensors are the safety add on to your garage doors.
This replacement garage door safety sensor kit uses an invisible infrared beam across the opening of the door the system detects any object passing through the led beam of light and automatically reverses the closing garage door.
Chamberlain compatible these sensors replace defective or damaged sensors for every chamberlain garage door opener manufactured after 1997.
In general garage door sensors block the door from closing if there is an object nearby.
If the sensor doesn t receive the beam emitted by its opposite number the door won t close.
For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
The sensors are located above the floor at each side of the door opening and.