1、Voltage Meter: Comes with built in shunt, the digital voltmeter can also be used to test DC current, very practical. 2、High Accuracy: Has high accuracy, the voltage measuring range is 0.0V‑100V, and the current testing range is 0‑10A. 3、Safer Working: With reverse connection protection, the voltage meter is not easy to burn when it's reverse connected. 4、Clear Display: Dual digital display enables a clear view for the voltage and current, which makes the reading easier. 5、Easy to Install: Compact in size and light in weight, the installation is very simple to be completed in minutes. Item Type: Digital Voltmeter Voltage Measurement Range: 0.0V-100V Current Test Range: 0-10A Power Supply Range: DC4-30.0V (Note: If the voltage exceeds 30V, an external independent power supply is required) Voltage Error: ±0.1% Current Error: ±1% External Shunt Specifications: 75 milliohms Working Current: <20mA Refresh Speed: About 300mS once. Display Mode: Double 3 digit 0.28in LED digital tube. Display Colour: Red + red. Lead Length: Approx. 20cm / 7.87in Dimension: Approx. 48 x 29 x 22mm / 1.89 x 1.14 x 0.87in( length x width x thickness) Installation Hole: Approx. 46 x 27mm / 1.81 x 1.06in Working Temperature: -10℃~65℃ 1 x Digital Voltmeter 1 x Cable