20A/50A/100A Digital DC 8-100V Voltmeter Ammeter LCD 4 in 1 DC Voltage Current Power Energy Meter Detector Amperimetro Shunt Features: 4-in-1 Monitor: Voltage,Power,Current, Electricity Energy Flame retardant material, rest assured and safe Built-in high-precision resolution A/D converter, high-precision measurement Wide measuring range Comes with backlight, short press the button to switch the backlight on and off Applications: Electric car, DC power supply, Solar energy, etc. Functions: Real-time display Power failure protection Real-time storage Overload alarm Backlight function One-click setting Note: If you need an electronic PDF version of the English manual, please contact us for it Specifications: 20A Working voltage: 8.0VDC~100VDC Maximum power: 2KW Measuring voltage: 8.0VDC~100VDC Measurement accuracy: level 1 Maximum current: 20A 50A Working voltage: 8.0VDC~100VDC Measuring voltage: 8.0VDC~100VDC Maximum current: 50A Maximum power: 5KW Measurement accuracy: level 1 100A Working voltage: 8.0VDC~100VDC Measuring voltage: 8.0VDC~100VDC Maximum current: 100A Maximum power: 10KW Measurement accuracy: level 1 Dimensions: Product Size: 90mm * 54.5mm * 28mm (3.54in * 2.14in * 1.10in) Open Size: 85mm * 47mm (3.34in * 1.85in) Package included: 1 * 4in1 Electricity Panel Monitor 1 * English Manual 1 * Shunt (When you choose 100A or 50A specifications)