PH Meter

A pH meter is a device that detects hydrogen ion activity in solutions, or in other words, it measures the acidity or alkalinity of a solution.

pH meters are useful for calibrating your water's acidity. Most tap water in America has a pH of 7.5 whereas the ideal pH for most leafy greens is 6.0 - 6.5. Other crops have their own ideal pH range.

Having at least one pH thermometer helps achieve greater hydroponic success.