This sensor uses the electrochemical principle to conyert the calcium ion concentration into a measurable electrical signal by measuring the electrochemical properties of calcium ions in water samples, The electrode has a PVC membrane that selectively responds to calcium ions. When calcium ions in the water sample come into contact with the sensitive membrane, it will cause a potential change on the electrode surface. There is a certain relationship between this potential change and the calcium ion concentration, By measuring this potential change, the concentration of calcium ions can be determined.

Application fields: agricultural testing, fish farming, chemical production, geology and mining, natural water monitoring, drinking water monitoring.