This water temperature gauge is used for measure water temp of a car,measurement ranges is 40-120℃. Suitable for most of 12V/24V car or motors. Accurate measurement of water temperature,easy installation,and clear readings. Make of Metal,with a wear resistant,scratch resistant,resistant,and outer shell. Our water temp gauge allows you to monitors your vehicle's engine coolant temperature to ensures it not overheats,potentially causing engine damage.