Data hold function.Impact proof housing.Humidity test range: 0~99.9%Built-in four kinds of patterns with precise testing.Auto power off: after about 15 minutesUsed to test all kinds of wood paperboard, dry cargo, paper, cardboard etc.Large LCD display of wood moisture value, easy to read.Accuracy: up to 0.5%Measurement principle: electrical resistanceSize: approx. 145 X 67 X 32mmMaterial: ABS plasticBuilt-in low battery detection and automatic power off.Resolution: 0.1%High resolution and response quickly.Memory contains 4 wood groups with calibrations for approximately 50 species of wood.Complete with protective cap, and carrying case.Battery: 9V Battery ( Not included)Electrode pins: integratedElectrode length: approx. 10mmWood Species Group:A: teak, walnut, afrormosia, rubber tree, imbuia, kokrodua, niove bidinkala, corkB: keruing, beech, cedar, tolaC: lauan, ash, elm, fir, maple, padauk oak, cherryD: basswood, larch, pine, birchMeasurement steps: 1. Open the lid (press both sides of the lid to open it)2. Press the power button to turn on3. Select the corresponding mode according to the measured material, press the MODE key to switch the A / B / C / D mode4. Pierce the measurement probe into the measured object and display the humidity reading (press the HOLD key to keep the reading)5. Press the power button to shut down, or shut down automatically after 15 minutesPackage included:1 x Wood Moisture Meter ( 9V Battery is Not included)Note:Item colour displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.