This immersion temperature probe is designed for use in liquid and gels. It can be used as a general purpose temperature probe. The thermocouple junction is protected from tip to handle by an Inconel sheath. The diameter of the probe is 1/8' (3.175 mm) and the length is 8.375" (212.725 mm). The 80PK-22 can be used with any temperature-measuring instrument that is designed to accept type K thermocouple and has a miniature connector input.