Specification: Product name:wood moisture tester Battery type:9V DC battery (Not included) Measuring range:0 -99.9% Instrument housing:ABS plastic Resolution:0.1% Operating temperature:0-40C (32-104F) Measurement accuracy:0.5% Product size:145*67*32mm Automatic shutdown:15 minutes after no operation Product weight:138g Data lock:Yes Color:Black Package Included: 1 * Wood Moisture Tester (Battery doesn't include.) Measurement methods: *For measuring soft materials, directly pierce the object to be measured with the measuring probe, and the humidity reading can be displayed; *When measuring harder materials, it is recommended to drill two small holes first, and then pierce the object to be measured with a measuring probe to read the humidity data. Measurement steps: 1. Open the lid (the lid is slightly tight, pinch the left and right sides to open it, be careful of exceive force and injury) 2. Pre the power button to turn on; 3. Select the corresponding mode according to the tested material, pre the MODE button to switch the A/B/C/D mode; 4. Penetrate the measuring probe into the measured object, and display the humidity reading in 1 second (pre the HOLD key to keep the reading); 5. Pre the power button to shut down, or automatically shut down after 15 minutes. Tree species comparison table claification Wood species A. Teak, walnut, African red bean tree, rubber tree, cork, mahogany, persimmon, stall wood, phoebe, Chinese toon, wild jujube, yellow pear, chicken wing wood, agarwood B. Dipterocarp, white poplar, mountain hair-like, cedar, rub wood, catalpa, camphor, phoebe, gun wood, Soviet poplar, big leaf poplar, Populus euphratica C. Willow eucalyptus, ash, elm, fir, maple, mahogany, oak, sandalwood, oak, cherry, hemlock, cypre, barrel oak D. Pole wood, larch, birch, red pine, mongolica, huashan pine, madai pine, maon pine For wood that is not in the above table, you can select the file number according to the wood hardne, A (harder)> B (hard)> C (softer)> D (soft), generally the default A file is enough, the file number does not have the measurement data influences.