This humidity sensor helps detect and pinpoint any slow leaks in walls, under the floor and on the ceiling, which can cause water damage, mildew and mildew. Use it on firewood to ensure that what you are burning is dry and does not cause creosote to accumulate in your chimney (Santa Claus and your chimney sweep will thank you for your thoughtfulness.feature:-100% new digital wood moisture meter handheld moisture detector-Measuring range: 0-99.9%-Resolution: 0.1%-Resolution and accuracy /-0.5%-Large LCD with data hold function to display measurement results-Automatic shutdown function-Low battery icon-Press the "Power" button to turn off the device-Press "Mode" to select the matching wood group-15 minutes automatic shutdown function to save your battery-4 patterns and about 50 kinds of woodSpecification:-Product size (length, width and height): 6.5cm x 14.2cm x 3.2cm-Packing size (length, width and height): 15cm x 9cm x 4cm-Product weight: 100g-Package weight: 130g-Power supply: 9V battery (not included)-Material: ABS / Plastic-Color: black, orangePackage Contents:1 x Digital Wood Moisture Meter Handheld Moisture Detector