Do You Need Garage Door Opener Sensors?

Posted on May 31, 2021 By Concord Garage Doors 
garage door sensor

At some point during a garage door opener sensor malfunction, it is more than likely that you have had an experience of your garage door not closing after sensing something close to the sensor despite there being enough distance. This scenario sparks many questions about whether one needs sensors on their garage doors and if they need the fancy or simple varieties! Here are essential things to know about your garage door and its sensors either way.

What are garage door sensors?

Garage door sensors are devices that help prevent anyone from being injured by a functioning garage door. Garage doors can weigh up to 500 pounds if they fall on someone without warning, making them just as hazardous as boulders.

Garage door sensors are a safety feature that prevents accidents caused by obstructions beneath the garage door. This is accomplished by installing two eyes opposite each other, with the garage in between them. The motion of moving up or down will be triggered when the laser devices break contact; however, if something gets in its way like a child running under, the motion automatically stops and reverses itself until there is no obstruction and can resume its original direction.

Will the garage door work without sensors?

As with any machinery that relies on sensors or electronics, faulty equipment can be caused by a malfunctioning sensor. What then is the answer to getting your garage door to operate without a sensor?

If you experience an issue with your safety sensor, don’t worry! Your garage door can still open and close. While an automatic opener will not function without the sensors, you may manually operate it by lifting or lowering it from either side of the door.

Garage door sensors are required by low?

With the increased number of accidents, safety regulations have never been so important. A garage door sensor is just one example of what a manufacturer should be installed for enhanced protection. According to federal law UL 325 from the 1990s, all garage door openers must have a safety sensor that prevents the door from closing on anything that is below.

The US Federal Law UL 325 requires safety mechanisms attached to the garage door, such as sensors. Other automatic safety devices are permissible; however, they must still comply with UL 325 requirements.


Garage door opener sensors are a crucial component of your garage door system and will help prevent the risk of injury or property damage. Sensors allow you to know if someone has opened the garage before walking up to it, which is especially important with kids around.

If you're not sure whether or not your home needs an additional sensor installed on one side of the garage, give us a call at Concord Garage Doors today for professional installation services! We'll make sure that all four corners have safety features in place so that no one gets hurt.