Produced with high-quality potassium chloride in various concentrations, HANNA TDS Solutions ensure maximum accuracy for conductivity meters and probes. They are standardized using a conductivity meter calibrated with NIST potassium chloride.
HI 70442 – 1500 ppm (mg/L)
HI 7032 – 1382 ppm (mg/L)
Available separately in 230 ml bottles.
Electrical Conductivity (EC) is defined by the ability of a solution to conduct an electrical current. Total Dissolved Solids (TDS) is defined as the amount of solids dissolved in a solution. In hydroponics, both are used to measure the strength of your nutrient solution.