The 2N 916114 Access Unit M RFID Multifrequency reads cards at frequencies of 125 kHz and 13.56 MHz. This comes in handy if you have several companies in one building each of them using different cards and they share certain areas. It also includes a controller with full decision intelligence. All you need to install and power the unit in a single UTP cable. The customer saves money on readers and you save time on installation and configuration.