We are offering a car voltmeter tester operating in the voltage range of 12-24V, which enables convenient and ongoing monitoring of the battery and alternator charge status. It has a built-in, easy-to-read LCD display which makes it extremely easy to use. Just insert the tester into the 12V cigarette lighter socket to enjoy the voltage control function. A clear LCD display with backlight will facilitate reading the measurement results. The solid housing will allow for long and trouble-free use of the device.