A thermocouple is a temperature sensor,it convert temperature signal to EMF. Signal to serve as input signals for process controllers for measuring temperature. Through selection of appropriate thermocouple wires and sheath components, thermocouples are suitable to be used in temperature ranges from -200°C to 1800 °C . Zonzen produces a wide range of thermocouples, they include MgO (Magnesium Oxide), probe sensor and bayonet types. We also make thermocouple assemblies of connection heads, protection tubes, thermowells or transmitters.