This Soil pH Meter provides an accurate reading of the relative acidity and alkalinity of wet garden soil. Easy to use in outdoor beds or indoors with houseplants, this tool will reveal if growing conditions are right, or if you need to adjust the soil for your crops and houseplants. Understanding the pH of existing soil helps cultivate healthier plants and avoid some very basic garden problems. This meter with a tethered stainless steel probe provides instant readings of soil acidity or alkalinity. No chemicals or litmus paper required. Information included for how to test, balance and control soil pH levels. No batteries required for operation.