The Fluke 80PK-10 is a K-type thermocouple clamp-on pipe probe for pipe outer diameters of 32 mm to 64 mm. Its spring-loaded jaw provides fast, tool-free contact temperature measurement on larger suction, discharge, and liquid lines without pipe modification. Applications include refrigeration commissioning, superheat and subcooling measurement, HVAC service diagnostics, and process temperature spot checks.