This unit is suitable for applications that require timed operations. A delayed egress feature will trigger a 1 to 60 second door release. Applications include daily/weekly test mode, one shot, door prop alarm, timed door annunciate, cut-off timer, alarm swinger eliminator, etc. Digital display facilitates ease of programming and real time information. Input 12 to 24 volts AC or DC operation Relay Triggers via dry contact. Dry form "C" contacts are rated @ 2A/120VAC/28VDC. Current draw: stand-by 15mA, relay energized 30mA. Simple programming. One-Shot Features (trigger activated): Programmable relay activation at the start or end of the timing cycle. a) Delayed Pulse Mode: 1 to 60 sec. programmable pulse at the end of timing cycle. b) Delay Mode: Relay can be programmed to energize or de-energize during timing cycle (Digitally adjust from 1 sec. -24hours). Features EE Prom memory protects against loss of programming due to power failure. Visual Indicators LCD displays real time countdown information. Temperature Operating -20ºC to 49ºC ( -4ºF to 120ºF). Storage -25ºC to 70ºC ( -13ºF to 158ºF). Relative Humidity 85% +/- 5%.