Features: 1.Supports up to 2000 users, supports three door opening methods, card, password, card + password, with doorbell interface, can be connected to a wired doorbell. 2.Support set an independent password that has nothing to do with the card. The user can modify the password by himself, and also can delete the card number. After the card is lost, use the keyboard to delete the card number, completely eliminating security risks. 3.The built?in card reader supports 125KHZ EM card and support Wiegand 26 input/output. It can be widely used in high?end office buildings, residential quarters and other public places. 4.Has anti?disassembly alarm function and output short?circuit protection function. When the electric lock or alarm output is short?circuited, the output can be automatically turned off within 100 microseconds. 5.High?quality metal material design, backlit keyboard, built?in American for Atmel microprocessor, has strong anti?interference ability, high safety and reliability. Specification: Condition: 100% Brand New Item Type: Door Keypad Material: Metal Color: Sliver + Black Frequency: 125khz Storage Capacity: 2000 Users Working Voltage: 12-24V DC Working Current: