0.56' Digital Voltmeter DC 4.5V to 30V Digital Voltmeter Voltage Panel Meter Red/Blue For 6V 12V Electromobile Motorcycle Car Feature: 1. 100% Brand New High Quality. 2. This DC voltmeter has a DC4.5-30V range. 3. It is easy to read, install and use. 4. It is a self-powered version and supports reverse polarity protection. 5. When the voltage is below 10V, 2 readings will be read after the decimal point, which means the accuracy is 0.01 when it is below 10V; when it is above 10V, the accuracy is 0.1. 6. Mini LED display. 7. No power supply required. Specifications: Measuring voltage: DC 4.5-30V two-wire acce Display: three-digit 0.56 "LED, red, blue, green Refresh speed: about 300mS/time The highest input: DC 30V (more than 30v, there is a risk of burning) Minimum input: DC 4.5V (below 4.5V, the measurement is inaccurate or does not display) Minimum resolution: 0.01V ( 10V) Resolution: 1% 1 digit Working temperature: -20~65 Size: approx. 48mm29mm22mm (length * width * height) Hole size: about 46 * 27mm Current consumption: