Eachine1 0.56 Inch Digital Ammeter Amp Mini Current Led Panel Meter

0.56 Inch Digital Ammeter AMP Mini Current LED Panel Meter 0-1A / 10A / 50A / 100A Description: DC ammeter: 0-1A/0-10A/0-50A/0-100A with reverse polarity protection Power supply: DC4-30V Measuring range: 0 - 1A / 0 - 10A / 0 - 50A / 0 - 100A Measurement accuracy: 0.1% Refresh rate: about 200ms Display: 0.56 inch digital tube Color: Red, green, yellow, blue Operating current: Less than 8mA Operating temperature: -10C to 65C Input impedance: 5m Overall dimension: 48 x 29 x 26mm Package Included: 1 x 0.56 Inch digital ammeter Connection Diagram: 0-50A and 0-100A ammeters are need an external shunt