The Testo 0602 4692 is a Type K Thermocouple Clap Probe. The 0602 4692 measures pipes with a diameter of 0.6” to 1”. The 0602 4692 has an accuracy rated at Class 2 and measures temperatures from -50 to 100 °C (-58 to 212 °F). It measures short term measurements of up to 130 °C (266 °F). The fixed cable has a length of 1.2 m.