0.36 Inch DC LED Digital Voltmeter 0-40V Voltage Meter Auto Car Mobile Power Voltage Tester Detector Voltmeter Electronic Parts AccessoriesFeature:1. The size of this voltmeter is 0.36 inches, the range is DC 0-40V, 2 wires, breaking the conventional voltmeter, it is the latest design, it can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulator.2. Equipped with two wires, the wire length is about 13CM. It is convenient to connect to the line inside the car/jumper cables/motorcycle. It has reverse connection protection function, and the line will not burn if it is reversed.3. It is used to monitor battery voltage, capture battery voltage status over time, and can also be used for other product voltage measurement purposes.4. Good product stability and high measurement accuracy.5. The appearance adopts standard size, easy to install.6. The power supply adopts polarity protection circuit. Specification:Product Name: Digital VoltmeterDisplay Color: Red, Blue, Green (Optional)Display Size: 0.36 inch LED Input Voltage: DC4 - 40V Working Current: lt; 20mATow Temperature: -10 to +65°C Operating Pressure: 10 to 80% (non-condensing)Working Air Pressure: 80 to 106kPaMeasuring Speed: ge; 320mS/timeDisplay, you can mention them: 0.01Error: ± 1%Input impedance:gt; 100K ohms Wire Length: About 13cm/5.12 inchMounting Hole: Center Hole Distance: About 27.5-28mm/1.08-1.10 inch, Hole Diameter: About 3mm/0.12 inchDimensions: About Total Length 33mm * Width 14.1mm * Thickness 9mm/1.30*0.56*0.35 inchNote: The maximum input voltage of 1.2 lines must not exceed 40V, otherwise there is danger of burns.2. The use voltage should be 40V. (many peers can only be 30V, and the price of 30V is also lower)3. Very low starting voltage, 3.0V. If conditions permit, it is recommended to use the best DC voltage range of 4V-30V. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Please allow 1-2cm measurement deviation due to manual measurement.1 * LED Digital Voltmeter