AR8401 is a water quality inspection analyzer integrating PH, ORP and temperature. It has the advantages of high precision and high accuracy. The instrument structure durable and beautiful, which is convenient for on-site actual monitoring of water quality. . It can monitor the acidity, alkalinity and redox reactivity , and it is composed of ORP composite electrode and mv meter. ORP value (oxidation reduction potential) is an important indicator of water quality, although it cannot independently reflect the quality of water quality , but it can synthesize other water quality indicators to reflect the ecological environment in the aquarium system. In natural water bodies, there are many kinds of ions and dissolved oxygen with varying prices. When some industrial sewage is discharged into the water, the water contains a large amount of ions and organic substances. Due to the different in the water body and tend to Because it is in balance, it is not a single redox system in the natural water body, but a mixed redox system. This instrument is widely used in marine exploration, bioengineering, environmental protection, brewing industry swimming pools and SPA health centers, Aquarium and aquaculture, environmental monitoring and water recreation, industrial water/drainage, drinking water/wastewater, routine laboratories and teaching.