1Noncontact RFID access control machine, which is one of the most advanced single door controllers. Backlight keyboard, more convenient to operate at dark night. 2Builtin card reader, supports reading 125KHZ EM card. Wiegand 26 input/output, stable performance. 33 ways to open the door: card, password, card + password. Large users capacity can support up to 2000 users. 4Use an independent password not related to the card to open the door, and the user can modify the password. 5If the card is lost, you can use the keyboard to delete the card, eliminate security trouble completely. Support antidisassembly alarm when illegal disassembly occurs. 6When the electric lock or alarm output is shortcircuited, the output will be automatically turned off within 100 microseconds. 7Builtin for Atmel microprocessor, strong antiinterference ability. It can be widely used in highend office buildings, residential quarters and other public places.