Manufacturers and suppliers of meters and equipment for pH, conductivity, total disoolved solids, dissolved oxygen, temperature, humidity, turbidity, Redox, chemical oxygen demand, titrators, magnetic stirrers and photometers for alkalinity, aluminum, ammonia, bromine, calcium, magnesium, chloride, chlorine dioxide, chlorine, chromium VI, copper, cyanide, cyanuric acid, detergents, fluoride, hydrazine, iodine, iron, manganese, molybdenum, nickel, nitrate, nitrite, nitrogen, ozone, phosphate, phosphorous, potassium, silica, silver, sulfate and zinc. Other products include ph & ORP electrodes, ion selective electrodes, calibration and maintenance solutions, in-line controllers & transmitters, refractometers, fertigation systems, etc. Â