Feature: 1. Non‑contact RFID access control machine, which is one of the most advanced single door controllers. Backlight keyboard, more convenient to operate at dark night. 2. Built‑in card reader, supports reading 125KHZ EM card. Wiegand 26 input/output, stable performance. 3. 3 ways to open the door: card, password, card + password. Large users capacity can support up to 2000 users. 4. Use an independent password not related to the card to open the door, and the user can modify the password. 5. If the card is lost, you can use the keyboard to delete the card, eliminate security trouble completely. Support anti‑disassembly alarm when illegal disassembly occurs. 6. When the electric lock or alarm output is short‑circuited, the output will be automatically turned off within 100 microseconds. 7. Built‑in for Atmel microprocessor, strong anti‑interference ability. It can be widely used in high‑end office buildings, residential quarters and other public places. Specification: Condition: Brand New Item Type: Access Controller Material: Metal Frequency: 125khz Storage Capacity: 2000 Users Working Voltage: 12-24V DC Working Current: <200mA Quiescent Current: <30mA Support Card: ID Card Card Reading Distance: Approx. 2-6CM/0.8-2.4in Relative Humidity: 10%-90% Working Temperature: -20°C-+60°C Storage Temperature: -20°C-+60°C Output Short Circuit Protection Time: Less Than 100us Electric Lock Output: ≤3A Door Opening Delay Time: 0-99 seconds (adjustable) Size: Approx. 128 x 54 x 22mm/5 x 2.1 x 0.9in. Package List: 1 x Access Control Machine1 x Connection Cable1 x Mounting Accessory Pack1 x Manual