Nernst high temperature dew point analyzer or high temperature micro-oxygen analyzer is mainly used to monitor the dew point value or micro-oxygen in the furnace when the cold-rolled steel sheets of each steel mill are annealed in the annealing furnace. Kugirango wirinde ibibazo bitandukanye byatewe na okiside itwara ogisijeni hejuru yicyuma mugihe cyo hejuru yubushyuhe.