The VSR 20D is an IP65 rated proximity card reader to be used with the MCP-040 four door controller. The VSR 20D is available in a 1235KHz or 13.56MHz card reader format and utilises the RS485 OSDP protocol to communicate with the MCP-040. It features a low profile which makes it ideal for retrofitting. The VSR 20D also has configurable Wiegand communication on board for use with 3rd party door controllers. Variants include:
 
VSR 20D RF: RFID Card Reader, to be used with MCP-040 Door Controller, IP65, Power from Controller, RS-485 Interface to Controller
 
VSR 20D SC: Mifare Card Reader, to be used with MCP-040 Door Controller, IP65, Power from Controller, RS-485 Interface to Controller