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.

0.188”, 0.215” & 0.250” diameter
¾-14 male NPT to connection head
½”- 14 male NPT to process
300 series SS