Sheathed thermocouples can be curved. They are heat-resistant, sturdy and durable, and their thermal response time is short. As temperature sensors, heated thermocouples are used with display instruments, recorders, electronic regulators. In addition, they can be used as temperature-sensing elements of fabricated thermocouples to measure temperatures range from 0℃~800℃ of liquid, vapor, gas medium, and solid surfaces. There are type E,K,T