VDO SingleViu 52mm (2-1/16") Voltmeter f/12V Systems [A2C3832770030]SingleViu 52mm (2 1 16") Voltmeter for 12V Systems SingleViu instruments represent the latest technology in instruments, and offer a top of the line solution by being able to work directly with traditional analog senders or work directly off a J1939 CAN network. Each SingleViu gauge has it's own microprocessor, which allows it to have a dual input capability that can be switched from it's default analog input to J1939 CAN via the SingleViu