Omega Engineering”s manufactured sanitary RTD sensors feature two types of probes — the heavy-duty probe stem has a stepped design for additional strength ($150); and the standard duty is a 1/4″ (0.250″) diameter probe ($120). Both feature standard probe lengths of three, four, five, and six inches with other probe lengths available. Both heavy duty and standard duty probes feature wetted surfaces that are 316L stainless steel with a surface finish of 32 microinch or better. Both are a good fit for CIP and sanitary process.