Possible answers:
[I] Ideally, this tool should be able to measure moisture that bubbles up when wet. There are many factors to consider when determining moisture levels.
[II] Use it to test out your natural moisture content. The same principle applies with wood resin products.
[III] This tool has 2 small metal probes that are touched against the wood to produce a moisture readout expressed as a percentage of the wood's volume or weight. Test the wood's moisture content.
[IV] A moisture meter must be in a plastic bucket so it can reach the moisture level after it is washed. These devices tend to be expensive, but you can find one online.Choose from options above and answer: What most naturally follows?

How to dry wood for woodworking 
Purchase a moisture meter. 
There is no accurate visual or tactile test for determining a wood's moisture content. To be sure that your wood is dry enough for woodworking, you'll need a small handheld tool called a moisture meter.
Answer:
[III]