SUGOLD Zjsj-G Aerosol Photometer Aerosol Spectrophotometer ZJSJ-G Aerosol photometer is designed according to ISO 14644-3b.6 scanning technology standard leak detector, it is specially suitable for tuyere filter leak detection. ZJSJ-G is easy to use, the basic purpose of it is to check and measure aerosol concentration, to achieve online filter leak detection. LCD screen can monitor the concentration of the downstream end of the change and the size range (0.3,0.5,1.3,5,10 um). HEPA filter test leak detector is made of four parts: aerosol generator, particle counter, the scanning probe and particle diluter.