GrowCNanswered grow question 2 years ago What is "General"?
I would say a moisture meter intended for wood or other solid surfaces will not work. Most of them work on electrical resistance so testing something like leaves or flower would be inaccurate.
To measure the moisture content I put them/it into a sealed, airtight container with a moisture meter. After 6 or more hours I read the humidity level. It is not an absolute reading of the pant's moisture content, since I'm reading the humidity of the air inside the container, but it provides an easy measurement.