0.6"1.7"16 V DC3.94"4.7"50 mAARD-AYJ12 - RFID Proximity Reader Access control card reader with Wiegand out-put for 125 kHz card technology (EM) Beeper Multicolored LED Display UL 294 FCC Part 15B CE ARD-AYJ12ARD-AYJ12 - RFID Proximity ReaderBoschCard Reader Access DeviceLEDMullion MountProximityRFID Proximity ReaderThe Bosch Grouphttp://www.bosch.com