pH of Water - Environmental Measurement Systems

pH stand for the "power of hydrogen" and is a logarithmic scale for how acidic or basic water is. Low numbers are acidic, high numbers basic.

YSI 600R-BCR-C-T-PH/ORP-DO Multiparameter Water Quality Monitor

pH of Water - Environmental Measurement Systems

pH of Water - Environmental Measurement Systems

Ocean acidification National Oceanic and Atmospheric Administration

Aquaponics pH Explained: How to Maintain the Perfect Balance

pH of Water - Environmental Measurement Systems

Hanna Instruments Singapore

Water Monitoring - an overview

pH and Water U.S. Geological Survey

High pH (8.2), but very soft water (2 dGH)