Description: Connection is simple, just need to pick up two lines, a joint reverse protection, then do not burn Starting voltage is low, only 3.5V, can correct measurement Variable precision: Precision automatic change below 10.0 V, the highest resolution of 0.01 V, Precision automatic 10.0 V above changes, the highest resolution of 0.1 V Can be used for measuring the car / battery car / motorcycle battery voltage, and other forms of voltage Can be used in all kinds of voltage measurement purpose Specification: Material: Plastic Working Voltage: 3.50-30.0V Display color: Green, Red, Blue Measurement accuracy: (1% + 1 Digit) Operation temperature:-10 degrees~65 degrees Display mode:0.28'' LED digital tube Update rate: About 1s/time Size: Approx. 27x 15x 18mm/ 1.06x 0.59x 0.71inch Package Includes: 1 Piece Mini Digital Voltmeter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.