The Fluke 80PK-25 immersion sensor is a Type K thermocouple probe designed for temperature measurement applications requiring direct contact with materials. This sensor operates across a temperature range from -40°C to +350°C, with a recommended continuous use range up to +260°C for optimal performance and longevity. It features a Mini-TE connector for compatibility with various measurement instruments. The probe is specifically suitable for temperature measurement in food products, as well as in liquids and gels, though it should not be used with materials containing halides or sulfides due to potential corrosion. Constructed for durability in industrial and laboratory environments, this immersion sensor provides reliable temperature readings with the precision expected from Fluke measurement tools. The design focuses on practical application where consistent, accurate temperature data is required for process control, quality assurance, or research purposes. The sensor maintains measurement stability across its operational range, making it appropriate for both routine monitoring and critical measurement tasks where temperature accuracy directly impacts outcomes. Its construction materials are selected to withstand repeated use in various media while maintaining measurement integrity. The Fluke 80PK-25 represents a specialized tool for professionals who require dependable temperature sensing in their work with compatible materials and environments.