Premium ABS Plastic Material: The car digital voltmeter is made of high quality ABS plastic material, which is flame-retardant and durable, waterproof and wear-resistant. It is not easy to break, has reliable quality and long service life. Reverse Connection Protection Function: The 12v voltage meter is used to monitor the voltage of the battery, and it has a reverse connection protection function, which will not burn the line. Easy to Use: The 12V voltmeter is easy to use, which is lightweight and easy to install, and it is an ideal tool for checking voltage. Touch for about 5 seconds to turn the power on or off. Good Voltage Measurement Tool: The 12V-24V DC LED voltmeter allows you know the status of the battery voltage in time, and you can also use the voltage measurement for other products. Wide Applications: The car voltage meter allows you to easily read the LED segments and connect to a 12volt system. It can be widely used in 12V24V cars, trucks, motorcycles, ships, boats, ATVs, RVs, tractors, etc. Product Quantity: 1 Piece Product color: black Product size: 36*25*mm