This push button by Honeywell is perfect for any front or rear entrance but you can add it as an additional doorbell at the side of your garage door. It is compatible with Honeywell chimes and has 16 code options to prevent interference from other users. The unit is made of UV resistant plastic and it is battery operated (batteries are included) and surface mounted. It works with RCWL100A, RCWL105A, RCWL110A units. This product is backed by a 1-year warranty.