Chamberlain 820cb Garage Door Safety Sensor, 2-pack

Chamberlain Model 820CB replacement safety sensors are infrared beam sensors designed to prevent accidents and property damage by detecting obstructions in the garage door path. These sensors project an invisible light beam across the inside of the garage door opening; whenever an object, person, or pet blocks the beam, the garage door automatically reverses before it can cause injury or damage. Compatible with Chamberlain garage door openers manufactured after 1997 and many other garage access systems, these sensors are essential safety components required for the safe operation of automatic garage door systems.

This two-pack provides replacement sensors so you can maintain dual-beam protection across your garage door opening, ensuring continuous safety for your household or business.

Features and Benefits

• Automatic Reversal on Obstruction: When the invisible light beam is interrupted, the garage door immediately reverses, preventing contact with people, pets, or objects in the door's path.
• Easy Installation: Mounting brackets and hardware are included for straightforward setup.
• Included Components: Each pack comes with mounting brackets, hardware, extension wire, and connectors.
• Wide Compatibility: Works with Chamberlain and other garage door openers and access systems manufactured after 1997.
• Two-Pack Value: Provides complete dual-sensor safety system in one package.

Specifications

• Brand: Chamberlain
• Model: 820CB
• Quantity: 2-pack (two sensors)
• Includes: Mounting brackets, hardware, extension wire, and connectors
• Compatible Systems: Chamberlain garage door openers manufactured after 1997 and other garage access systems from that era forward