7-in-1 Water Quality Meter: It’s capable of measuring multi-parameters for water quality, such as PH(acidity and alkalinity), TDS (total dissolved solids), EC (electrical conductivity), ORP (oxidation-reduction potential), S.G (specific gravity), Salinity and Temperature. Simply press the {MODE/CAL} key to switch between the values to be measured,making it easy to use and suitable for testing most common aqueous solutions
PH Meter with Automatic Temperature Compensation(ATC): The PH METER is equipped with a highly sensitive glass probe ensuring for accurately measuring the pH value of the sample within the temperature range of 0℃-60 ℃ (32°F-140°F), which can perfectly solve the error caused by the liquid temperature change, thus making the PH value more accurate
Twice salinity meters: Salinity % and Salinity ppm Measurement.This water Tester can test salinity of freashwater or sea water. Very conveniently and easily keep track of saline levels by either percentage or ppm. Great for saltwater pools, aquarium, saltwater spas or anywhere salt levels are critical