Metal Case, Luminous Keyboard: can operate keyboard even at night Mulifunction, can be used as wiegand 26 reader alone. Big capacity: 2000user,With 2000 cards and password storage. Three kinds of opening: card; password; card+password Low power consumption, the current is less than 30mA under standby . Short-circuit protection: When the output for electric lock and alarm is short-circuit, it will cut off output within 100S. Wiegand Input & Output at the same time Can delete the card through keyboard With anti-break alarm design. Specification: Working Voltage DC 12V Static Current less than 30mA Read distance 2~5cm Temperature -35~60 celsius degree Humidity 10%~90% Electric Lock Output less than 3A Alarm output less than 20A Time for outputting short-circuit protectin less than 100s Open time 0-99s Dimension L108mm*W76mm*H25mm Package Includes: 1 Piece Metal Access Control Keypad 1 Piece Installation Kit 1 Piece User Manual