JH3000series SF6electrical equipment decomposition product detectoris a precise,intelligent and portable comprehensive detector. Itcan make a judgment quickly and correctly based on the detection ofthe contents of main decomposed products, ie., SO2 SOF2,H2S,CO and HF,from the cracking of the insulation material if the electricalequipment,such as, SF6 circuit breaker, instrument transformer, GIS and transformer etc.fails at the early stage. The portable SF6decomposition product detector operates with the highest precisionand the ability to detect the most composition in the world.Furthermore, JH3000-5 detector is able to carry out the dew-pointtest at the same time so as to provide the more complete andefficient technical means for SF6electrical equipment in terms of insulation defectivediagnose, SF6live steam quality monitoring andtoxicity testing.