Type:W-Re 3/25,W-Re 5/26,W-Re5/20 Common uses: thermocouple temperature measurement in high-temp furnace Condition: used in vacuum, hydrogen or inert gas environment, temperature range from 0-2300 . Diameter and tolerance of high temperature thermocouple wire: Type WRe5/26WRe3/25 Diameter(mm) 0.250.350.51.0 Tolerance ±0.02 Thermoelectric characteristics and tolerance Thermocouple composed of thermocouple wire, when the reference terminal temperature is , the temperature and thermal emf tolerance as follow: Type of Thermocouple Temperature Range Tolerance WRe3/25 0~400 ±4.0 400~2300 ±0.25%t WRe5/26 0~400 ±4.0 400~2300 ±0.5%t Note is the measured temperature