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Safety sensors are a critical component of an automatic garage door system. These sensors help prevent accidents by automatically stopping the opening or closing action, if someone or something is in the way. Every now and then these sensors need to be replaced due to an accidental impact or general wear and tear. We review the most popular sensor replacements for each brand below.

Top Features
  • These garage door opener replacement safety sensors are made specifically for Chamberlain/LiftMaster garage doors.

  • The package comes with 2 sensors, mounting brackets, 18 inches of extension wire, and an instruction manual.

  • Chamberlain is one of the largest garage door opener manufacturers with a reputation for quality parts

Chamberlain garage door opener sensors are made specifically for Chamberlain/LiftMaster garage doors. The brand has been using these sensors since 1997. This particular set is not compatible with Craftsman 100 series.

The sensors are quite easy to install. You will find mounting brackets, extension wire, and an installation manual in the package.

Top Features
  • These sensors are compatible with all Chamberlain/LiftMaster garage door openers manufactured after 1997.

  • Perfect replacement if your existing safety sensors are faulty – can even be fixed and matched if one still works

  • Like-for-like replacement

These garage door safety sensors from LiftMaster are compatible with Chamberlain/LiftMaster garage door openers manufactured after the year 1997. The package doesn’t come with a mount, brackets, or additional wire, which is why it’s so reasonably priced. If you already have all these items, then this model is perfect for you.

The sensors only take around 15 minutes to install.

Top Features
  • The Chamberlain garage door kit comes with 2 safety sensors, 2 mounting screws, 2 wing nuts, and 4 wire crimps.

  • The safety sensors monitor the garage door opening area and notify the system if there are any obstacles.

  • The sensors are compatible with Craftsman and Chamberlain garage door openers.

The Chamberlain 41A5034 sensor kit is the perfect solution for all Chamberlain garage door openers. You always get the best parts directly from the manufacturer! These sensors are compatible with Craftsman garage door openers too.

The kit includes 2 safety sensors, 2 mounting screws, 2 wing nuts, and 4 wire crimps. If your sensors have malfunctioned, this set will make a great replacement. The sensors will make sure there are no obstacles in the way of the garage door.

Top Features
  • The Genie replacement safety beams are compatible with Genie garage door openers that were made since 1993.

  • The sensors will alert you if there is a malfunction in installation or operation, so you don’t have to figure it out yourself.

  • The safety beams are very easy to install. The kit comes with mounting brackets and hardware.

The GSTB-R STB-BL replacement safety beams by Genie are compatible with Genie garage door openers that were manufactured during and after 1993. They come in a stylish, black design. 

The sensors will alert you when they’re malfunctioning during installation and operation, so you can fix the issue right away. They will keep your family and pets safe in case they get in the way of the garage doors operating. The installation process is very simple.

Top Features
  • These Marantec M4-705 safety sensors work well with all Marantec garage door opener units.

  • The safety sensors by Marantec form a safety system with a receiver and transmitter.

  • The kit comes with brackets, wiring, hardware, and installation instructions. You will be able to install the sensors yourself.

Marantec M4-705 safety sensors are a great solution for all owners of Marantec garage opener units. The sensors work with all Marantec units. The system boasts a receiver and transmitter. 

Once ordered, the safety sensor kit comes with brackets, wiring, hardware, and installation instructions. If you had the previous model from Marantec, you will appreciate that these sensors are an upgrade.

Top Features
  • These garage door safety sensors work with some DoorMaster, Torsion iDrive, and Quantum/Classicdrive models.

  • The garage door opener safety sensor kit comes with sensors, wire mounting brackets, fasteners, and installation instructions.

  • The sensors are very easy to install and have received multiple positive reviews. You can check the official website for a video tutorial.

This Wayne Dalton Garage Door Safety Sensor Kit comes with sensors, wire mounting brackets, fasteners, and installation instructions. The installation process is very easy. You can find a helpful video tutorial on the official website to follow.

The sensors are compatible with many garage door models from DoorMaster, Torsion iDrive, and Quantum/Classicdrive. Check the website to find out more. The sensors are not battery operated, which increases their lifespan and makes them more convenient.

Top Features
  • These TCK TECH safety sensor eyes work with models that have the inbuilt safety sensor feature.

  • The safety sensor eyes are compatible with garage door openers from Life Master, Sears, Chamberlain, Craftsman, Master Mechanic, and Wayne Dalton.

  • This is a 2 door kit that includes 4 safety sensors and attached wires, 4 mounting brackets, hardware, and installation instructions.

The kit is compatible with garage door openers from Life Master, Sears, Chamberlain, Craftsman, Master Mechanic, and Wayne Dalton that were manufactured from 1997. 

The kit is meant for 2 doors. It includes 4 safety sensors with attached wires, 4 mounting brackets, hardware, and installation instructions. This is a great solution for those who want to replace their old sensors.

Tips to Maintain your Garage Door Sensor

As you already know, these sensors are incredibly important. Without them, you’re putting your life and the lives of your loved ones at risk of being hit by a garage door in operation. To make sure the sensors are working as they should, you need to take good care of them and conduct regular maintenance.

Here are some tips to maintain your sensors:

  1. Test your garage door sensors regularly and monitor the light colors. There is an easy way to check. Place a cardboard box in the way of the doors and try to close them. If the doors close with the cardboard box in the way, there is a problem.
  2. Make sure the sensors are clean and not blocked by dirt. Give them a wipe with a damp, clean cloth once in a while.
  3. Make sure the sensors are aligned. For example, your dog could have accidentally knocked them over.
  4. Replace your sensor if it suffers an impact.
  5. Make sure your sensor is fully connected to the power supply.
  6. Make sure there are no wiring issues caused by vibrations from the door.

Common Questions relating to Garage Door Sensors

What is a Garage Door Sensor?

Automatic garage doors have sensors that are meant to prevent accidents and increase safety. In fact, in most countries they are required by law.

There are two sensors placed on either side of the doors approximately 6 inches above the ground. They connect to create an invisible wire that will inform the door system if something is in the way. 

If you want to open or close the garage and the sensors detect something in the way, like a child, pet, object, or person, they will stop the doors automatically. That way you can avoid injuries and accidents.

How do Garage Door Sensors Work?

Garage door sensors are absolutely necessary for any automatic garage door. Without said sensors, the garage doors pose a threat to any object, person, or animal that can come in their way. 

There is a sensor on each side of the garage doors. The sensors connect with an infrared beam of light that is powered through electricity. This created barrier will indicate if anything is in the way when the doors are opening or closing. If there is a dog or child running through, or just a large object lying on the ground, the sensors will send a signal to the doors to stop.

What Color should your Garage Door Sensor be Emitting?

It is not uncommon for garage door sensors to malfunction. That could happen because of a variety of reasons. Maybe your sensors are covered in dust and just need a little cleaning, or they’re reaching the end of their lifetime and need changing. Either way, there is an easy way to identify if your sensors are in good shape. Check what color they’re emitting.

When everything is in place, the sensors should emit a steady red light. If the light is unsteady, dim, or flashing, that could mean something is in the way. It could also mean the sensors are malfunctioning.

How does the Automatic Reversing Mechanism work?

If your garage door sensors find an obstruction in the way, they will engage automatic reverse. This feature is exactly what it sounds like. The door will reverse if there is something in the way, be it your car, suitcase, or dog. 

The way it works is quite simple. When the sensors encounter an obstacle, they send a signal to the door to stop whatever it’s doing. Naturally, this feature is incredibly important. Garage doors are very heavy and can easily injure a person or destroy an object in their way. That is especially true for children and small pets.

Conclusion

Garage door sensors are critical to the safe functioning of your automatic garage doors. It is a worthy investment, as they can save your life, the lives of your family members and pets, or the exterior of your car. Choose wisely!

Top Features
  • These garage door opener replacement safety sensors are made specifically for Chamberlain/LiftMaster garage doors.

  • The package comes with 2 sensors, mounting brackets, 18 inches of extension wire, and an instruction manual.

  • Chamberlain is one of the largest garage door opener manufacturers with a reputation for quality parts

Sources

liftmaster.com

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