Proximity Reader, Type 125 khz HID Proximity (Up to 91 Bits), Switch Action Genuine HID Technology, Material Stainless Steel, Finish Stainless Steel, Depth 1 in, Height 4 1/2 in, Width 2 3/4 in, Button Color Red/Green, Color Gray, Rating IP66, Input Voltage Field Selectable 5V DC or 12V DC, Output Wiegand, Operating Temp. -40 Degrees to 180 Degrees F, For Use With Access Controls