Optical Pyrometer 

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Temperature & it's measurement Devices : • Temperature and it's m... ,
Bi-Metallic Thermometers & Helix -Spiral Type Thermometers : • Bimetallic Thermometer... ,
Optical Pyrometer: • Optical Pyrometer ,
Thermocouple: • Thermocouple ,
Thermistor Thermometer : • Thermistor Thermometer ,
Radiation Pyrometer: • Radiation Pyrometer ,
Resistance Thermometers : • Resistance Thermometer ,