The Honeywell RPW210A1002/A Wired Surface Mounted Illuminated Push Button Door Chime is encased in a UV-resistant plastic that will maintain its original coloring for an extended amount of time compared to customary plastic models. For the absolute best results and illumination, this surface mounted door chime requires a door chime transformer and wired installation. This is a traditionally designed push button and features measurements of 2.25 inches (H) by 1 inches (W) by .75-inches (D) and comes with a centered, circular button. Bolster your home's security by utilizing this door chime as an additional door alert for your front door, rear door and side doors. This can be achieved by adding this push button to any 'B' category chimes. Incredibly easy to install, this product is accompanied by Honeywell's easy-to-follow categorization guide that will allow you to search for compatible chimes and push buttons. A classic design, effortless installation process and a very affordable price make this an excellent alternative to a wireless model. Assuring absolute peace of mind, Honeywell has included a one year warranty that protects your product against defects in material and faulty workmanship.