Determine the moisture content of wood and other building materials (like drywall) or check water damaged areas to see if moisture is still present.
2-pin version tester, it is easier to insert and it will leave only 2 little holes instead of 4!
Stick the stainless steel pins into the surface of what you are measuring in order to get a read-out.

This moisture meter is a contractor's best friend because it helps you avoid damp wood that's prone to cracking & warping. Moisture is one of the most frequent causes of coating failure as well as construction defects. Applying paint to a substrate that is too moist will frequently lead to failure of the film.

Moisture meters are particularly useful in all phases of furniture manufacturing. Proper use of a meter can ensure that the wood will maintain dimensional stability so that costly defects such as splitting, warping, and delamination will not occur. A higher level of unacceptable moisture tells the operator that additional drying of the lumber is needed before it is ready for production.

Moisture Meter is the first step in mold prevention - By checking suspicious water stains with a moisture tester around the house, you can determine whether the area is wet (a perfect breeding ground for mold) or has long since dried.

General Features:
Digital large size LCD display;
2-pin version; Model # JT-2G;
Measuring Range: 5% to 40%; Resolution: 1%; Accuracy: ±1%;
High resolution and quickly response;
Can hold value; Symbol and unit display, read and get conveniently;
Low battery symbol "-+";
Power: one 9V battery INCLUDED;
Dimension: 126 x 70 x 29 mm;
Operation temperature: 0'C to 40'C.

Here is our buyer's feedback: "I got this for checking firewood. Works great."