Moisture meters answer every important question in restorative drying. Do you need to know what’s wet? Use a meter. Are the materials drying? Get out the meter. How’s the air doing? Are the materials warm enough? Did the materials dry? Meter, meter, meter!
Thus the most important tool on the project is a meter. Without it, you know NOTHING! The meter in a professional restorer’s kit should be one of the most prized possessions, treated with gentle respect at every use and protected from every potential harm.