Faria Beede Instruments 2" Water Temperature Gauge 100-250F Kronos

Faria Beede Instruments 2" Water Temperature Gauge 100-250F Kronos. 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 sys