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Best EC sensors for hydroponics gardening

Balancing nutrient solution is one of most important things when growing plants in hydroponics systems. EC sensor will tell us how much nutrients we have in water. Conductivity is the ability of substance to carry the current. It is the reciprocal of resistivity. In liquid, we often use the reciprocal of resistance, that is conductance, to measure the conductive capacity. The conductivity of water is a important indicator in the measurement of water quality. It can reflect the level of electrolytes present in the water. Depending on the concentration of the electrolyte, the conductivity of the aqueous solution is different. In the International System of Units, the uint of conductivity is Siemens / meter (S/m), and the other units are: S/m, mS/cm, μS/cm. Conversion relationship is: 1S/m = 1000mS/m = 1000000μS/m = 10mS/cm = 10000μS/cm.
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Bosnia and HerzegovinaBosnia-And-Herzegovina flag
Analog EC meter, specially designed for Arduino controllers and has built-in simple, convenient and practical connection and features. When done the connection according to the diagram, then with the program control, it's very convenient to measure the conductivity value.