Measuring range 0.00-14.00PH Accuracy 0.01 Temperature compensation range 0.0-50.0 (°) Applications: laboratory, industrial, sewage treatment, scientific research, pharmaceutical, electroplating solution, tap water, aquaculture, drinking water, enzymes, well water, sea water, boiler water, fish tank water, swimming pool water, photographic rinse, ink, food processing , Ionized water, household water quality testing, physical and chemical teaching, cosmetics, human urine PH value. Usage: Remove the pen, open the switch, put the test solution stir, the value can be read the value of stability!