Internal RFID card reader for installation in the basic module of the 2N® Helios IP Vario intercom. Allows the use of EM4100, EM4102 and HID Proximity cards. Another two switches, two logical inputs and a Wiegand interface are available. It is compatible with all 2N® Helios IP Vario models. Supported 125 kHz cards: EM4100, EM4102, HID Prox