The answer to that question depends very much on what you will do with the information. Is it Important to Know the pH of Your Soil Accurately? The probes and electronics they use are just not good enough. You might expect that the electronic pH meters are more accurate, but they arenвЂ™t. In fact in many cases the color change is so small that youвЂ™d be hard pressed getting the whole number correct. If you have a look at the pictures above you can easily see that they donвЂ™t measure pH to 1 decimal place. Unless pH is measured to at least one decimal place, the value is of limited use to gardeners. The reason is that a small change in pH numbers is actually a large change in acidity. So You are Thinking вЂBig DealвЂ™ вЂ“ Why do I Care it is Logarithmic? A change of 2 numbers, example 5 to 7, is a change of 100, which is a huge change. Worded slightly differently, a pH change of 1 unit is actually an acidity change of 10. What this means is that a pH of 5 is 10 times more acidic that a pH of 6. This is fairly common knowledge, but what most people donвЂ™t know is that pH is measured on a logarithmic scale (do you remember high school math?). A value of 7 is neutral, ie it is neither acidic or alkaline. Anything below 7 is acidic and anything above 7 is alkaline. pH is reported as a number between 0 and 14.

Yes this is more convenient, but you will never get a useful reading without first making the water solution as described above. The really cheap models come with a metallic probe and the instructions suggest that you insert this directly in the soil.

The probe that comes with them is inserted into the soil water, and the pH can be read directly from a display. Electronic soil pH meter Electronic pH MeterДЄ variety of garden pH meters are available.

Accurate 4 ph