Simple and convenient voltmeter for the car's cigarette socket - keep track of the car battery's voltage with this easy-to-use and practical device. This voltmeter is perfect for monitoring the voltage of the car's battery, so you always know when it's time to charge. With a clear digital LED display showing the voltage value, it's easy to read even in bright sunlight. It fits in all cars equipped with a cigarette lighter socket, and can measure both 12V and 24V voltages, making it versatile and practical for all types of vehicles. With its slim, black design and simple installation, this voltmeter is an indispensable helper for all car owners. Just insert the voltmeter into the cigarette lighter socket, and get immediate information about the car's battery status. Its compact design and robust construction make it both durable and easy to store. Keep your car battery in top condition and avoid sudden battery failures by regularly checking the voltage with this reliable voltmeter. • Fits both 12V and 24V systems • Digital LED display for easy reading • Size: 7.3 x 4 x 3 cm • Simple and quick to install • Fits all cars with a cigarette lighter socket • Robust and compact design