Garage Door Safety Sensor How It Works

In fact these safety sensors have been required by law since 1993.

Garage door safety sensor how it works. They are part of the automatic garage door system. Safety sensors are designed to prevent accidents caused by automatic garage doors which have led to serious damage to cars and injuries and deaths to people and animals. The first unit emitter creates the light beam which is then received by the second unit receiver. The sensors then send a stop signal to the electric motor of your garage door.

Garage door openers can be opened with a remote control which activates the motorized trolley. When the device detects any person or object in the path of a closing garage door it signals the motor to stop the downward action and switch the motion into reverse to stop the obstacle being crushed. Any time an object or person crosses the light beam it breaks the connection between the two units. The traditional form of sensor is mechanical in which a moving garage door reverses due to physical contact with an object but photoelectric sensors have become mainstream.

They work thanks to two devices located oppositely from each other. How does a garage door sensor work. While some buttons on garage door openers are wired to the house others are remote powered so that you can open your garage door while still in your car.