0.56 Inch DC 0-10\/30\/200V 3 Wire LED Voltmeter Digital Display Panel Volt Meter Specification: 0.56 LED Digital DC Voltmeter: 0 ~ 10V， 0 ~ 30V， 0 ~ 200V Power supply: DC 4V ~ 30V Measuring range: 0 ~ 10V， 0 ~ 30V， 0 ~ 200V Measurement accuracy: !#!amp!*!plusmn;0.1% Refresh rate: about 200ms Display: 0.56 inch digital tube Display color: red， yellow， green， blue Operating current: !#!amp!*!lt;8mA Operating temperature: -10 C to +65 C Input impedance: 100K Overall dimension: 48 x 29 x 26mm Package included: 1 x 0.56 LED Digital DC Voltmeter