Lascar emv 1200 series 3 digit lcd voltmeters panel mount lascar emv 1200 40 this 3 digit lcd panel meter measures and displays dc voltages with a range of 4 to 40v dc the meter is powered by the signal being measured and only valid readings are displayed the unit is easy to mount requiring just a single circular hole lascar emv 1200 40 3 digit lcd voltmeter