Faria Faria Beede Instruments Faria 12814 Euro Water Temperature Gauge 40-120C (Metric) - 2"

A temperature gauge operates by sending a low amperage current through the gauges' 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. About this item Metric (40-120° C) With or without Warning Lights Dual Scale Display Designed for quick and simple installation See more product details