By displaying the coolant temperature, the car water temperature gauge is convenient for car owners to know the cars condition.The meter has a LED display with 7 colors adjustable backlights, which is convenient for you to observe the car data.It is made of ABS and electronic component materials, which is durable and portable.The length of the product is 5.5 cm, the width is 5.5 cm, the height is 5.2 cm.It is applicable to all gasoline modified 12V car models.Item Name: Water Temp MeterMaterial: ABS,Electronic ComponentVoltage: DC 12VFeatures: LCD Display, High Accuracy, SensitiveSize Details: 5.5cm x 5.5cm x 5.2cm/2.17 x 2.17 x 2.05 (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Wire Connection:Red Wire: 12V dashboard light / 12V ignition switchBlack Wire: the negative terminal of the batteryPackage Includes:1 x Water Temp Meter1 x User Manual1 x Mounting Bracket1 x Mounting Screw1 x Water Temperature Sensor