The Milwaukee pH600 Digital pH Meter is perfect for homebrewers and anyone who needs to measure pH levels accurately. It's great for testing the pH of mash when brewing beer or checking water quality in aquariums. It has a 0 - 14 pH range, is calibrated easily with a single point, and provides an accuracy of 0.1 pH units. The package includes a calibration screwdriver, batteries, and a user manual to get you started right away.