Milwaukee’s economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values. The pH600 is a pH tester specifically designed for the aquarium market. The calibration procedure is very simple and fast. This tester has 1 point manual calibration, ±0.1 pH accuracy and a range of 0.0 to 14.0 pH. The pH600 is supplied in a blister packaging