4) With WG26 input/output, can connect to a extra card reader; With door bell button, can connect to a extra door bell This standalone access control system supports multiple access modes, including card, PIN code, or a combination of both. The independent code feature allows users to gain access without needing a card, adding convenience for temporary or frequent visitors Metal case with blue backlight Rfid Keypad Reader RFID 125KHz WG26/34 Access Control Kit 3000 Users Password Card Keypad Door Wiegand 26-bit Standalone Keypad HFeng Standalone IP68 Waterproof RFID Access Control Keyboard Metal Card Reader 10pcs 125KHz Proximity Keychains WG26 2000 Users For Home/Office Silver Wiegand 26-bit Toetsenbord 3) Full programming from the keypad,Humanized tamper alarm function., With time delay HFeng Standalone IP68 Waterproof RFID Access Control Keypad Metal Card Reader 10pcs 125KHz Proximity Keychains WG26 2000 Users for Home/Office : : Industrial & Scientific About this item 1) IP68 Waterproof/ Rainproof, can be install outside. Metal case with blue backlight 2) Memory capacity Support Card, password, Card + password to open the door. 2) Memory capacity: 2000 user cards.