This instrument is a precision wood moisture meter through pin contact. It provides 4 optional measurement for your choice, which is suitable for measuring water content of bamboo or wood products, cotton, paper, herbal medicines, plaster, etc. Features: 1. Digital LCD Screen: For clear humidity display. 2. Small Volume and Light Weight: Convenient to carry and use. 3. Provide 4 optional measurement modes for humidity measurement. 4. Measurement data can be saved in them memory, convenient for reading. 5. Support data hold, low battery indication and automatic temperature compensation. 6. Replace test pins without opening the case, convenient for routine maintenance. 7. Suitable for measuring water content of bamboo or wood products, cotton, paper, herbal medicines, plaster, etc. Specification: Model: MD912 Moisture Measurement Range: 2%~40%/50%/60%/70% RH Resolution: 0.5% Operating Environment: 0 ~ 40, 0~70% RH Power Supply: 1*9V 6F22 Battery (NOT included) Size (L*W): 13.8*6.4cm / 5.43*2.52in Weight: Approx. 157g/5.5oz Package list: 1 * Moisture Meter 1 * Hand Bag 2 * Sensor Pins Note: 1. Due to the difference between monitors and light effect, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding.