Dimensions (mm): 117H x 73W x 38D Programmable wrong-code lockout Real-time clock to auto-disable access at specific times Always-on backlit keypad The Seco-Larm Access Control Keypad – Indoor is designed control access to an indoor area for up to 1,000 permanent users and 50 temporary guests. The 12-button keypad is set in a durable stainless-steel single-gang plate. It features a real-time clock to auto-disable access at specific times, plus programmable wrong-code lockout to help prevent intrusion. It has a single Form C relay output (1A at 30VDC max.) that can be programmed to activate for up to 99,999 seconds (nearly 28 hours). All programming is done locally at the keypad. Guest codes can be programmed for one-time or limited-time use, customizable from 1 to 99 hours. The keypad’s programmable delayed egress input lets users exit without entering a code. The keypad supports 12-24V AC/DC universal power, eliminating the need for special programming or jumpers. It wires into a power supply (sold separately) and mounts to the wall with the included screws. In case of a power outage, all your data is stored and reliably retained in the keypad’s non-volatile EEPROM memory.