the meter can be quickly calibrated to a higher accuracy compared with one or two point calibration

Accuracy to ±2% FS @ 25°C

And it takes up HARDLY ANY SPACE

Filter Size: 2

Go Berkey® Kit waterproof pH tester the meter can be quicklyProduct Description The lightweight, compact and easily transportable Go Berkey Kit is designed for use while on the go. Constructed of highly polished AISI 304 stainless steel Storage capacity of about 1 quart (. 95 liters) Upper chamber nests within lower chamber for transport and stands only 10" in height Maximum Filters: One Black Berkey Element (upper chamber) Kit includes: upper and lower stainless steel chambers, 1 Black Berkey Element, 1