The S65 spring-loaded sensor is designed to be used with the SWE sanitary elbow thermowell or the SWT standard sanitary thermowell. The hygienic ferrule extension connection provides a quick and easy way to remove the sensor for calibration and process verification while eliminating the NPT threads normally used with a thermowell.

Series S Standard Spec Sheet

https://burnsengineering.com/wp-content/uploads/2021/05/Series-S.pdf