Direct Readings in Five Minutes
Built for the grower, this lightweight Salinity Tester works by reading the electrical conductivity of the soil. It takes readings on two scales: mho for soil solutions and ppm to measure nutrients in water.
Comes complete with a built-in electrode, calibrated test jar (premarked to help you make soil-in-water solutions easily), 9V battery, thermometer and a handy carrying case. The range is 0–6400 ppm and 0–10 mho.