Use this moisture meter to test your firewood to make sure it is at the optimal moisture level for burning in your stove. This digital meter comes with a protective cap and detects moisture from 10 percent to 28 percent. It is simple and easy to use. Simply remove the cap, turn the meter on and insert the probes into your firewood. It will then quickly and accurately read the moisture levels. Burning the proper moisture level wood will help your stove burn more clean and efficient, last longer and produce less creosote buildup in your chimney.