Features:- Used to measure the Battery voltage of automobile.- Blue light on the dial for easy reading in the darkness.- Suits 12 volt applications.Description:Color: WhiteBacklight:BluePower: 12V DCUnit: VMeasurement Range: 8-16 VGauge Diameter: 2" / 52mmPackage Included:1 x Volt Gauge1 x Bolts Pack1 x Installation Manual