Digital Ph Meter Digital Free Calibration Powder

Product Features: Easy to Use: Simply immerse the pH meter electrode in the solution to be tested, readings are quickly display on a large lcd display Wide Application: Ideal instrument for any aquarium, the fishing industry, swimming pools, spa, school laboratories, food & beverage, drinking water etc. Auto Calibrated: Features in-built calibration with 2 buffer powders(included).Just press a button to finish the calibration. This pH meter is factory calibrated. Users can use it directly. Fast and Accurate Results: No need to work with those annoying color charts and test strips.