Features:Equipped with 2 connection wires, easy to wire (convenient for testing car, motorcycle and battery basket); No extra power needed; Precision voltage meter, measuring range DC 2.4V-30V; With reverse wiring protection and precise function adjustment; Specifications:Model: v010Type: digital voltage meterMeasuring range: 2.4V-30.0Vvoltage measurement error: 0.05VPought current: lt; 30mATuering Time: 0.36" LEDSag Rate: About 200ms/timeLine Length: 19.5cm/7.68inDisplay Color: RedOperating Temperature: -10 - 65CRuvending Size: 35x20x20mm/1.38x0.79x0.79"Net Weight: 10gNotes:When the voltage is below 3V, the display brightness will dim without affecting the correct measurement. Test voltage higher than 30V may damage the product.1 x Battery Voltage Meter