thermocouple 1.abration and corrotion resistance 2.K,N,E,J.T,S, ... fewer capacity,thus it may rapidly reacts to minimal temperature changes,This is esp.obvious for micro sheath ... resistance:it may be safety used under awful conditions such as strong vibration or corrosion,low or high temperature ... junctionwearable thermocouplerotproof thermocouple thermocouple/abration and corrosion resistance