Item Type: Car VoltmeterMaterial: ABSColor: BlackInput Voltage: 12VOutput Voltage: 5VOutput Current: 4.2AApplication: Universal for 12V cars, trucks, ships, yachts and other electronic products.1Wide Application: This voltage gauge is universal for 12V cars, trucks, motorcycles, ships, yachts, has a wide range of application. 2Waterproof Design: Waterproof design, effectively prevent rain water into the voltmeter damage. Intelligent control chip, fire prevention and high temperature. 3LED Display: LED digital display, this voltmeter gauge is easy to read, real time monitoring of battery voltage, easy for you to know the status of the battery. 4Easy to Use: Small size and easy to install. Intelligent control chip, fire protection and resist high temperature. Safe and convenient to use. 5Matte Texture: Use black matte texture, can better integrate with the car, in line with overall style.1 x Car Voltmeter2 x Heat Shrinkable Tube1 xBracket2 x Screw