I still have that soil master...but the pH isnt very accurate if you stick in the soil...I suggest you to take a bowl to catch the runoff from the drainages....from there you can check pH in the runoff bowl it kinds more accurate..but its pretty effective if you use distill water to read pH...but nowsday i rarely check pH since i added the lime to mix of soils...but moisture meter is very good...it will not fail ya
happy growing and peace
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