... 0 to 14.00 pH* LCD indicates both pH & Temp.* Pen type digital pH meter, all in one, pH electrode is included ... PCs* Build in temperature sensor, ATC (auto temperature compensation)*Available for wide applications, such as aquarium, beverage, fish hatcheries, food ... quality control, school & colleges, swimming pools, water conditions* Auto calibration for pH 4.01, pH 7.00 and pH 10.01Specifications ...