WGG2 optical pyrometer is a non-contact temperature measurement instrument. It is used in the occasion when the thermocouple measured temperature is higher than the range or the place where thermocouple can not be set up. It is widely used to measure the temperature in iron, cast, rolled steel, glass melting kiln, forging and heat treatment. It is an Indispensable thermometer in metallurgical, chemical and machinery industrial processes.