How Does Garage Door Opener Sensors Work

How does a garage door sensor work.

How does garage door opener sensors work.

In the majority of cases a photo eye sensor will be installed on the garage door sensor. Garage door openers can be opened with a remote control which activates the motorized trolley. 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 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 sensors are normally about 4 inches above the ground. This precaution ensures that the door doesn t close when your car is in the doorway.

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 infrared beam from the garage door opener sensors isn t able to be seen by human eyes. If the beam of light is interrupted while the garage door is closing the door will stop and rise back up. As long as the beam isn t interrupted the door will open or close normally.

They do this by using an electric eye sensor that crosses the doorway. The sensors are located low on each side of the garage door and the 2 beams meet performing a connection. This system allows them to detect obstructions like your car or a kid on a bike. An infrared light runs between two photo eyes.

The purpose of a photo eye sensor is to detect if anything is blocking the path of the garage door. The same mechanism kicks in when other objects are placed near the door too. Garage doors may display a. In general garage door sensors block the door from closing if there is an object nearby.

The units are placed near the ground on either side of the garage door. 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. 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. If the sensor doesn t receive the beam emitted by its opposite number the door won t close.

This means the sensors will provide the same level of safety once installed no matter what garage door opener it is connected to. Are garage door sensors universal. Photo eye sensors detect objects as well as people. 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.

The machine kicks in to arrest the door s motion or to make adjustments if a door isn t opening or closing completely. Do both garage sensors need to be green.