RW Industrial RTD assemblies feature sheathed -58° to 400°F (-50 to 204°C) 316 stainless steel or MgO mineral insulated -328 to 1200°F (-200 to 650°C) and are designed to mate with a thermowell.  Typical assemblies include a spring loaded feature to ensure contact with the well bottom.  Nipples and a pipe union and are mated with connection heads to protect the sensor from dirt and moisture. These assembles allow for replacement of the RTD while the wells are in place.  Probes are available in 100? DIN 0.00385 Class A +/- .15°C @ 0°Cor Class B +/- .30°C @ 0°C.125”, .188” or .250” diameters single or duplex and 316 or alloy 600 sheath materials.