The J-WR type thermocouple is an industrial temperature sensor. A thermocouple consists of a circuit made from two different conductive materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated in the circuit, which changes linearly with the measured temperature. Encased in a stainless steel housing, it offers various process connection methods and junction box options. It is stable and reliable, widely used in thermal engineering, power generation, food processing, pharmaceuticals, pressure vessels, petrochemical processes, as well as in large machinery such as ovens and plastic fiber equipment for temperature measurement.