The Honeywell RPWL100A is a white wireless push button that has a limited compatibility range. This unit works with RCWL100A, RCWL105A and RCWL110A door chimes and carries the additional bonus of acting as a door alert when added to any of these models. This push button has an extended use of applications. Whether you're searching for a push button to install at a rear door in your home or an additional button within your garage, you'll have no shortage of options to explore when properly utilizing this item. This push button includes a surface mount and an additional 16 codes to prevent interference from other users. The RPWL100A is coated in UV-resistant plastic that is guaranteed to bolster durability and extend lifespan.