Working temperature: 1100℃; The maximum temperature is 1200℃; Furnace material: alumina refractory fiber; Temperature control system :PID mode adjustment 30-steps programmable automatic control; Temperature control accuracy :±1℃; Heating rate: 0~10℃/min; Temperature control: protection with over temperature and broken couple alarm function; Furnace size: Φ37mm; Heating zone: Two temperature zones, should be cut off; Vacuum sealing system: does not require sealing flanges and quartz tubes; heating element: resistance wire; Working voltage: AC 220V single 50Hz; Temperature measuring element: K-type thermocouple temperature measurement;