This is a great wood moisture meter for any hobby or professional woodworker and craftsman. It is a small and lightweight, so you can use it in your shop or take it with you to check the quality of the wood you buy. It is also a great wood moisture meter to detect damp, rotting wood or wet walls when you inspect your home. You will be able to find and confirm water intrusion, flood damage and damp condensation spots that promote mold and rot. Moisture meters are an essential tool when inspecting homes and foreclosures before you buy them. The meter can also be inserted in plaster and dry wall, and in carpets and will give you a comparative reading between dry and wet spots. When buying firewood you can test that it has been dried and is ready to burn. Firewood should have a moisture content of less than 10%. This is the NEW improved 4 -pin wood moisture meter, it is easy to insert and will give you more precise readings than 2-pin moisture meters. This wood moisture meter comes with a battery and a blue carrying and storage bag.