This device is a card reader slave without a relay and cannot be independently connect to lock. It must be connected to a Controller machine with Wiegand input function, The purpose of card reader slave that it is not possible to open the door by damaging the card reader outside the door or short circuiting the door opening signal wires. Only by transmitting the wiegand signal from the card reader to the controller can the door be opened, Manufacturer: Ounfhtrttk