365339 1. Real-time monitor the voltage of cars. 2. High-brightness LED display， green display voltage， very clear. 3. High quality ABS material 4. Simple operation， easy to use 5. Suitable for 12/24V all cars， SUV， trucks， buses， etc. Color: black Material: ABS + electronic components Package size: about 13 x 8.2 x 3.5 cm Product size: about 73 x 40 x 40 mm Voltage: DC 12V/24V universal Voltage measuring range: DC 8-40V Display: three-digit， green LED digital tube Function: monitor storage battery voltage， 12V cars， SUV， 24V trucks and buses 1 x Car cigarette lighter digital voltmeter In blister package