•Salinity is a measure of the mass of dissolved salts (ionic constituents) in a given mass of solution and usually expressed as parts per thousand (ppt). •Conductivity is a good measure of salinity in water. Other indirect measures are water density, sound speed, and refractive index. All can be used to calculate salinity.
Liguei o mais a uma ponta da sonda e depois meti o GND a porta analógica e a outra ponta da sonda em serie.