... 50/60HZ ApplicationWidely used in environmental protection, sewage treatment, thermal power, breeding, food processing, printing, metallurgy, pharmacy, fermentation, ... industry, water and other solution PH value of the online detection,swimming pool.Main technical parameters:1.Measuring range: ... size: 92x92mm17.Weight: 0.9 Kg High accuracy online PH controller/PH probe/water treatment PH analyzer ...