Faria Beede Instruments White 2" Water Temperature Gauge 100-250F Euro. 0625" (53mm) A temperature gauge operates by sending a low amperage current through the gauges's meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure temperature etc... As the sender's resistance varies the amount of current allowed to flow through it to ground changes and the meter deflects showing the temperature. Available for MG systems J1939 CAN Bus or J1939 Stand-Alone systems and mechanical types. Benefits: Standard (100-250 F) Metric (40-120 C) Dual Scale With or without Warning Lights Specifications for Faria Beede Instruments Euro White 2" Water Temperature Gauge 100-250F: Manufacturer: Faria Beede Instruments Color: White Features of Faria Beede Instruments Euro White 2" Water Temperature Gauge 100-250F Standard (100-250 F) With or without Warning Lights Dual Scale Display Designed for quick and simple installation Package Contents: Faria Beede Instruments Euro White 2" Water Temperature Gauge 100-250F Faria Beede Instruments 12904: White 2" Water Temperature Gauge 100-250F Euro