Pocket-sized digital pH meter, perfect for testing pH in pool, aquarium, spa or food and beverage water. The pH meter makes it easy to always maintain the ideal pH balance with high-precision measurements. This pH meter has built-in automatic temperature compensation (ATC), so it can accurately determine the pH of a sample at any temperature within the range of 0 C - 60 C. It will instantly adapt to the current water temperature without you having to think about it. The pH tester has an extremely sensitive electrode sensor for accurate pH readings. A detailed manual is included to show you how to get accurate measurements. With automatic calibration - easy calibration with the push of a button and using the buffer powder provided. 2 bags of buffer powder (pH 4.01, pH 6.86) are included. Measuring range: 0.00 - 14.00 pH. Accuracy: 0.01 pH Power supply: 2*1.5V Ag13 LR44 batteries (not included). Operating temperature: 0-45 C