Measuring range: 0.00-14.00 pH. Temperature compensation range: 0.0-50.0 degrees. Accuracy: 0.01 Function: pH value detection, voltage detection, temperature detection, instrument calibration, latch function, low voltage spikes. Pocket-sized and durable with long battery life. Applications: Laboratory, Industrial, Wastewater Treatment, Scientific Research, Pharmaceutical, Electroplating Solution, Tap Water, Aquaculture, Drinking Water , enzymes, well water, sea water, boiler water, aquarium water, swimming pool water, photographic rinse, ink, food processing, ionized water, household water quality test, physical and chemical education, cosmetics , pH value of human urine. A great gift for relatives, friends, neighbors and loved ones.