Features: Gauge is lighted. Used to measure the volt level of automobile. High sensitivity and easy operation. Specifications: Voltage: DC 12V Diameter?2 inch / 52mm Read: 8-12-16 Inside diameter of the screen?43mm / 1.7" Outside diameter of the screen?56mm / 2.2" Dial Colour: Chrome Note: Easy Installation Picture on listing , Professional installation is Highly Recommended
