The T5 has three members to the family, all looking alike but with different functionality. There devices have a smart black finish and are narrow enough to fit discretely on the side of most entrances. The PRO version operates on its own and has both relay and LAN connection. The Slave device must be connected to a VF30 or T5PRO and makes possible the unlocking of the door from either side. The T5 Standard is used with Wiegand based controllers.