The sealed environment 212SE style keypad features a brushed metal housing that has been treated to resist corrosion and an all metal Braille, alpha-numeric keypad. There is an internal sounder that is used to indicate key press feedback, and a bi-color LED to indicate operation. The housing has been designed to mount directly on a standard single-gang electrical box, or to most flat surfaces. Features 120 users Indoor/outdoor self-contained brushed metal housing Surface mount vandal-resistant design One-piece housing suitable for wall, post, or gooseneck mounting Durable metal Braille alpha-numeric keys 4 onboard programmable timed relays Tamper loop functionality mode: 212, 232 Specifications Current draw: 108 mA maximum (add 30 mA for each additional relay) Operation voltage: 12-24 VAC/VDC – auto adjusting Dimensions: 3.00″ W x 4.50″ H x 1.55″ D Temperature tolerance: -20F to 130F Order number: 0-212140