A Thermocouple is a sensor used to measure temperature. Thermocouples consist of two wire legs made from different metals. The wires legs are welded together at one end, creating a junction. This junction is where the temperature is measured. When the junction experiences a change in temperature, a voltage is created.There are many types of thermocouples, each with its own unique characteristics in terms of temperature range, durability, vibration resistance, chemical resistance, and application compatibility. Type J, K, T, & E are “Base Metal” thermocouples, the most common types of thermocouples.Type R, S, and B thermocouples are “Noble Metal” thermocouples, Thermocouples are known for their versatility as temperature sensors therefore commonly used on a wide range of applications – from an industrial usage thermocouple to a regular thermocouple found on utilities and regular appliances. dpstar provides many years of high quality Malaysia manufacturing, research and product development for your temperature sensing needs. dpstar manufacturers a tremendous selection of general application, mineral insulated metal sheathed, base metal, high temperature, surface temperature and multipoint thermocouples. dpstar famous Maltec-T is one of the largest leading manufacturer they produce high quality thermocouple and there are many other variety to choose from at http://www.dpstar.com.my.