How Garage Door Sensors Work

As long as the beam isn t interrupted the door will open or close normally.

How garage door sensors work.

If that ray has been interrupted the garage door will reverse opening instead of closing. Two sensors are installed at the bottom of your garage door preferably 6 above the floor. Photo eye sensors detect objects as well as people. The sensors are located low on each side of the garage door and the 2 beams meet performing a connection.

Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units. The purpose of a photo eye sensor is to detect if anything is blocking the path of the garage door. Garage door sensors are purposed to prevent injury to you your pets or your loved ones. How does a garage door sensor work.

In fact these safety sensors have been required by law since 1993. If the beam of light is interrupted while the garage door is closing the door will stop and rise back up. Garage door openers can be opened with a remote control which activates the motorized trolley. 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.

The sensors are normally about 4 inches above the ground. Photoelectric sensors use an infrared beam. 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. How garage door sensors work in the majority of cases a photo eye sensor will be installed on the garage door sensor.

Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side. They can also prevent damage to the garage door and the garage system itself. 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. This is why both sensors must face each other.

This system allows them to detect obstructions like your car or a kid on a bike. The units are placed near the ground on either side of the garage door. They are part of the automatic garage door system. Your garage door sensors perform a vital function.