Chamberlain Replacement Safety Sensor (2 Count) Chemical Drain Openers & Cleaners Adjustable backset 2-3/4 or 2-3/8-inch

Adjustable backset 2-3/4 or 2-3/8-inch

The Whirlybird® turbine's exclusive vari-pitch base adjusts to a 12/12 roof pitch for use on many roof applications

buff and tear in one fluid motion

1-1/2" wide laminated steel case

white and blue print lines for the simple identification of cold water

Chamberlain Replacement Safety Sensor (2 Count) Chemical Drain Openers & Cleaners Adjustable backset 2-3/4 or 2-3/8-inchThe 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. Whenever there is an obstruction, the garage door will automatically reverse before causing any damage. Chamberlain compatible, these sensors replace defective or damaged sensors for every Chamberlain Garage Door Opener manufactured after 1997. Easy setup and