Access Control Keypad, Access Type Keypad, Case Material Zinc Alloy, Finish Silver Powder Coated, Series DK3000, Height 4 3/4 in, Width 3 1/4 in, Depth 1 7/8 in, Number of Keys 0, Timed Entry Allowance 5 to 15 sec, Power Required 12/24V AC/DC, Operating Temp. Range -31 Degrees to 151 Degrees F, Event Audit Trail 40,000, Max. User Codes 2,000, Standards UL Listed, Weather Yes, For Use With AL-DTMIII, Mfr. No. ALPCI2-U-AL-IR1