How Does Garage Door Opener Sensors 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.

How does garage door opener sensors work.

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. The units are placed near the ground on either side of the garage door. Do both garage sensors need to be green. Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side.

Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units. How garage door sensors work. All garage door sensors work the same way and serve the same purpose. The same mechanism kicks in when other objects are placed near the door too.

The sensors are located above the floor at each side of the door opening and generate a low voltage beam that completes the electrical circuit when the door is activated. 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. The force of the door s motion can also be adjusted so the door stops moving.

The sensors are normally about 4 inches above the ground. This system allows them to detect obstructions like your car or a kid on a bike. How does a garage door sensor work. Some models are advertised to be universal which means a specified unit will be compatible with garage door openers associated with names such as liftmaster chamberlain craftsman and others.

If the beam of light is interrupted while the garage door is closing the door will stop and rise back up. There are several different brands of sensors. The infrared beam from the garage door opener sensors isn t able to be seen by human eyes. The machine kicks in to arrest the door s motion or to make adjustments if a door isn t opening or closing completely.

As long as the beam isn t interrupted the door will open or close normally. An infrared light runs between two photo eyes. This precaution ensures that the door doesn t close when your car is in the doorway. The purpose of a photo eye sensor is to detect if anything is blocking the path of the garage door.

If the sensor doesn t receive the beam emitted by its opposite number the door won t close. Photo eye sensors detect objects as well as people. This means the sensors will provide the same level of safety once installed no matter what garage door opener it is connected to. The sensors are located low on each side of the garage door and the 2 beams meet performing a connection.

Garage doors may display a. In the majority of cases a photo eye sensor will be installed on the garage door sensor.