Features:Adopting high quality chip with sealed ABS waterproof shell, reliable and durable.This voltmeter is used for DC voltage measurement, such as 12V, 24V battery car, motorcycle and electric car.The battery voltage can be accurately measured and displayed to determine the residual battery capacity and prevent battery damage0.56inch digital LED display, convenient to read data in the dark.For best accuracy, this voltmeter will automatically move the location of decimal point to the measured voltage.Specification:Material: Waterproof ABSWeight: 17g/0.6ozMeasuring range: DC 2.5V -30VMinimum input: DC 2.5VMaximum input: DC 30VMeasurement error: 1%Display mode: 0.56 inch LED digital displayDisplay color: Red, Yellow, Green, Blue (Optional)Display voltage range: 2.5V - 30VRefresh rate: 200msWaterproof: YesWorking temperature: -10~ 65Shell color: blackSize: 4.8*2.8*2.2cm/1.9*1.1*0.9inchPackage List:1* LED Digital Voltmeter1* CableNote:It is displayed as voltage, and the remaining battery quantity does not need to be judged according to the voltage value.