Resistance temperature detectors (RTD) accurately sense temperature with an excellent degree of repeatability and interchangeability of elements. In operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration.

Nickel plated cast iron
SS chain
Silicone gasket
¾” conduit thread & ¾” process thread
Ceramic round 6 position terminal block