VR20M-MF NGCR MiFare EV1 mullion reader. VR Mullion reader – Modern attractive looking reader with hardwearing materials which endure the most challenging weather conditions. Multicolour programmable light frame on all readers which enhance the look and functionality of the reader. The customer can choose colours for each outcome and rest state. OSDP or Wiegand connectivity supporting MIFARE card technology including EV1 and EV2.