The HID 5375 Reader is ideal for Long read range distance (up to 6' with ProxPass). Autotune allows read range to be maintained within four inches of metal. Wiegand, Clock-and-Data, RS-232, RS-422, and RS-485 output modes are configurable. ''Parking hold'' feature ensures accurate detection of vehicles in parking lanes. Power requirements: 12 or 24 VDC (configurable). Part Details: HID MaxiProx Reader - 23.98'' Operating Range - Wiegand - Gray