2-1/16" (52mm) ViewLine Voltmeter - 8-16V - Black Dial & BezelThe ViewLine 52 mm Ammeter shows the level of current being drawn and the current supply on a clearly readable dial. The shunt (a measurement resistor) can be inserted into the measurement point in a matter of seconds. The voltmeter displays the status of generator and battery and their loads on a voltage scale. Values exceeding the normal charging voltages can therefore be monitored exactly. Even potential deep discharges can be detected.