Manufacturer DynaLock Model 7450 Dimensions 5.33 H x 1.74 L x 1.12 W Operating Temperature -30C to 65C ( -22F to 150F ) Programming 3 User and Access Levels: Program one to three different levels of access for each individual user or for the entire system. Auxiliary Outputs Multiple Auxiliary Modes: Ten programmable auxiliary modes including: Door Ajar, Forced Door, Alarm Shunt, and Door Monitor Number of Users Up to 500 Voltage Input 12-24 VDC or 16-24VAC Warranty Lifetime Warranty Weight 1.0000