The Fluke 80PK1 Type-K Bead Probe, -40 to 260 °C (-40 to 500 °F) is designed for general purpose temperature measuring applications. It has an extremely fast response time, due to the low thermal mass of the exposed tip. The 40 in. Teflon cable is terminated with a Type K miniature thermocouple connector with 0.312 in. pin spacing. The 80PK-1 can be used with any temperature measuring instrument that is designed to accept Type K thermocouples and that has a miniature connector input. The 80PK-1 must be used in Teflon-compatible environments and is not suitable for liquid immersion. Anything above 260°C (500°F), the Teflon will emit toxic fumes.