| PH Meter: Ideal for all PH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment & agriculture TDS Meter: Total Dissolved Solids (TDS) are the total amount of mobile charged ions, including minerals, salts or metals dissolved in a given volume of water, expressed in units of mg per unit volume of water (mg/L), Also referred to as parts per million (ppm). TDS is directly related to the purity of water and the quality of water purification systems.
Conductivity Meter: It is used for measuring the electrical conductivity of a solution. It works by applying a voltage between two or more electrodes submersed in the solution. The meter then monitors how much current is passing between the electrodes as a gauge of how many ions are in solution. Be aware that meters may give readings in E.C., C.f. Or ppm and some meters may do all three.
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