Garage Door Alarm Sensor

Whenever there is an obstruction the garage door will automatically reverse before causing any damage.

Garage door alarm sensor.

Chamberlain liftmaster craftsman garage door opener replacement safety sensors g801cb p includes 2 sensors mounting brackets and hardware 4 7 out of 5 stars 1 669 38 99 38. 4 2 out of 5 stars 61. In garage door sensors. If you re anything like me then you have probabl.

The replacement safety sensors project an invisible light beam across the inside of the garage door to prevent accidents and are required for safe use of all chamberlain garage door openers. 2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors. In garage door sensors. Fits any craftsman garage door opener manufactured after 1997.

The infrared beam from the garage door opener sensors isn t able to be seen by human eyes. Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side. This system allows them to detect obstructions like your car or a kid on a bike. Prevents the garage door from closing onto people pets or objects.

5pcs mc 31 surface mount wired nc door contact sensor alarm magnetic reed switch white. As long as the beam isn t interrupted the door will open or close normally.