I added a whisperer to one of our zones. Recently the moisture content was between 25-30%. We are having a hot summer with many days with 110 degrees. I believed it and watered for good 15-20 minutes. It turned out despite all those water the soil moisture went up to 45-50%. I went and checked again, the soil looks pretty good and appeared moist.
Just curious if the whisperer tends to underestimate moisture?