Exterior Digital Keypad, Cast Aluminum, Satin Chrome Finish, For Use With Access Control Applications, Siren Style Continuous, 0 dB Decibels, Voltage 12 to 24V AC/12 to 24V DC, 5 A Amps, Number of Wires 3, Test Range 50 ft, Height 5 1/2 in, Width 4 in, Depth 3 in