Milwaukee pH56 pH/Temp MeterThe 1957 Cadillac of portable pH meters. If you're an All Grain brewer, water pH is crucial for your brew. Having the correct pH in your mash and sparge water helps reduce the chance of off flavors, improves conversion, and ensures optimal yeast health in the fermentation. But paper test strips can be maddening. Range of 2 to 16 pH and 23 to 140F with 0. 01 pH and 0. 1F resolution and + 0. 05 pH and 1F accuracy. Automatic single or double point