Review on Enhance Your Plant's Health with Soil PH Test Kit & Moisture/PH/Sunlight Meter – Perfect for Garden, Indoor/Outdoor Plants! Ideal for Garden, Lawn, Farm Soil by Robert Edmondson

This unit reported my soil was extremely alkaline so I added tons of acidifier to the soil and it said still my soil is alkaline. Finally, I placed the probes in pure Canadian spagum moss. Everyone knows that Canadian moss is very acidic. It is still considered almost 100% basic. The arrow didn't even move! Then I realized that this thing is totally incapable of measuring soil alkalinity or acidity. Now I have repaired my floor too much and need to fix it which will be a costly and long term problem due to a cheap device that misled me.