EverAccess Proximity Readers, including the ERR-871, ERK-871 and ERM-871, incorporate state-of-the-art technology, reliable performance, easy-to-use features, and elegant appearance. The Readers generate a 125 kHz RF field that detects data from proximity cards. The data output format is Wiegand 26 or RS-232, which allows easy integration with most controllers, including EverAccess controllers. The Readers have 3 LED indicators which emit red, green, and yellow colors that indicate different values. The pigtail wiring on the back of the Readers is 18” long, enabling easy installation.