20" flexible immersion tip thermocouple, O 1.5 mm, TC Type K, -40 Deg to 1832 DegF

The Testo 20-inch flexible Type K immersion tip thermocouple provides fast, accurate temperature measurement across an extremely wide range of -40 DegF to +1832 DegF (-40 DegC to +1000 DegC). Its thin, wiry, flexible construction enables access to confined or difficult-to-reach measurement points in air streams, process equipment, and industrial applications where larger probes cannot be positioned effectively. The small-diameter tip minimizes thermal mass for rapid temperature response, reducing wait times during field measurements. Compatible with all Testo instruments and meters equipped with a TC (Type K) adapter input. Ideal for HVAC duct surveys, industrial process validation, furnace monitoring, and any application requiring a compact, flexible thermocouple probe with wide-range measurement performance.