Garage Door Alarm Sensor

This system allows them to detect obstructions like your car or a kid on a bike.

Garage door alarm sensor.

The sensors are normally about 4 inches above the ground. If you re anything like me then you have probabl. 5pcs mc 31 surface mount wired nc door contact sensor alarm magnetic reed switch white. The infrared beam from the garage door opener sensors isn t able to be seen by human eyes.

Fits any craftsman garage door opener manufactured after 1997. Contact aka door sensors can be used for much more than just doors and windows if you re creative enough. As long as the beam isn t interrupted the door will open or close normally. 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.

4 2 out of 5 stars 61. Prevents the garage door from closing onto people pets or objects. 2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors. 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.

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