These series of thermocouples are specified for the temperature measurement of molds with hot runner, plastic molding machineries, and feeding cylinders on rubber and sulferization machineries. The thermal sensing element, insulating material, and the armor are drawn into a solid unity- the armored thermocouple-sensing element. The series are endowed with the cutting edge of strong flexibility, high pressure and strong vibration esisting, high reliability a quick response and small diameter. The series are the ideal thermal sensors forthermoforming process in hot runners.