Security RFID Proximity Door Entry keypad for Access Control System with 10 Key Fobs Features: This RFID Proximity access controller using proximity card is one of the modern access control systems. The state-of-the-art CPU and integrated circuit techniques are applied to keep all the data from loss due to power failure. It is powerful and can open the door using proximity cards, passwords, or the hybrid.The access controller can provide users with more convenience by connecting to terminals, including the button for opening the door, doorbell, and electric lock that is normally open or closed.This product offers a method for controlling access safely and automatically, qualifying it as an ideal equipment for businesses, offices, factories, and communities. Size/Dimensions: 116mm×116mm×20mm Voltage (Volts): 12V