Widely applicable in environmental protection water treatment, purified water, circulating water and other systems, as well as in fields such as electronics, electroplating, chemistry, pharmaceuticals, etc., in environmental monitoring, sewage treatment plants, etc. Widely applicable to industries such as petroleum, chemical, metallurgical, organic liquids, inorganic liquids, pharmaceuticals, food, etc., with product advantages, backlit large LCD displays are suitable for installation in areas with poor lighting. 144X144 microcomputer designed pH/redox controller. IP65 rated waterproof and dustproof design, with strong durability. Automatic calibration and temperature compensation .....