Extremely easy to use, simply dip and compare with a large waterproof color chart located right on the bottle. The color chart has the epa recommendations for all parameters and indicates low, ideal and high readings.
Tests for 16 parameters: iron, copper, lead, fluoride, pH, total alkalinity, free chlorine, total chlorine, mercury, sulfate, total hardness, carbonate, zinc, nitrate, nitrite, aluminum.
