Features: 1.Designed to measure the car water temperature, the measuring range is from 40C to 120C. 2.Exquisite design, waterproof and safe. Wide range of applications, suitable for most 12V DC cars. 3.LED backlit and LCD display, the gauge dial and needle pointer offer high visibility, clearly show temperature data even in the dark. 4.Made of stainless steel, with plastic housing, shockproof and corrosion resistant to ensure the maximum service life. 5.This practical water meter has a high reading ability and can perfectly match and replace the original equipment. Specification: Item Type: Water Temperature Gauge Material: Plastic + Stainless Steel Fitment: Works on 4/6/8 Cylinder engine and 12 Volt Gasoline car Color: White Light Measurement Range: 40 - 120 Degree Celsius Power: DC(10-15V) 12V Professional Wiring: Red Wire: Positive Black Wire: Negative Yellow + Red Wire: Light Source Green Wire: Connect to the Sensor