This is a t-type thermocouple wire sensor in AWG24 with blue high temperature Teflon PFA insulation, which is good up to about 260 degree C Celsius or about 500 degree F Fahrenheit. This t-type thermocouple probe can be used for a wide range of applications. The copper constantan wire is made to standard t-type thermocouple specifications. This is a solid thermocouple wire, which is fairly flexible. Widely used in woodworking for drying kiln and ovens. The Type T thermocouple is a very stable thermocouple and is often used in extremely low temperature applications such as cryogenics or ultra low freezers. T-type Thermocouples are also found in other laboratory environments as well. The type T has excellent repeatability between –380F to 392F (–200C to 200C).