325823 1. Real-time monitoring car voltage， temperature. 2. High brightness LED display， easy to see the voltage clearly. 3. High quality ABS material. 4. Easy to use 5. Apply to all 12 / 24V cars， SUV， trucks， buses， etc. Color: Black Material: ABS Package size: about 13.1 * 8.2 * 4.2cm Size: about 75 * 41 * 41mm Voltage measuring range: DC 8-40V Voltage display: three red LED Nixie tube Purpose: to monitor the battery voltage 1 x Cigarette lighter Voltage meter In blister package