AUTOMETER SPORT-COMP WATER TEMPERATURE GAUGE 2-1/16" 50-1150 C # AU3332M Feature Points Traditional incandescent lighting illuminates around the perimeter of the dial AutoMeters race proven mechanical instruments provide trusted accuracy while being simple to install No electrical system required for gauge operation - compatible with every street or race vehicle Mechanical movements provide accuracy and durability even in the harshest environments Gauge kit includes 1/2" NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation Ships With 1/2"" NPT adapter/fitting.