Random question. Im worried the metal tips will get damaged if forced into the ground (rocks etc). Has anyone tried this. Is it ok to do? Where is the actual sensor in the probe? Buried in the metal?
Why do you need to check soil temp with a thermometer?
For my lawn.
I don't understand what it is about the soil temp of your lawn that would lead you to use a thermometer to check it. It should be well above freezing in Mass. for a while yet.