BENETECH GM620 1.8 inch LCD Screen Digital Wood Moisture Meter Features 1. Adjustable for 4 tree species 2. Reading lockable 3. Auto temperature compensation for environment varying 4. Maximum moisture reading review 5. Backlight onoff switch 6. Applying CPU technology for accurate measuring 7. 2 x LR03 1.5V batteries for power supply with battery icon for indication of power 8. Large LCD 9. Automatic turn-off if there is no further operation within 120 seconds while manual turn-off can be performed. 10. Able to measure the environmental humidity and temperature. 11. Compact and fine design with solid and light plastic material, Portable and easy operation 1. This precision instrument applies the most advanced core technology in MCU application field, which features accurate output, convenient operation and 4-level adjustment 2. Can be applied in measuring the moisture level in the woods, bamboo, paper and some Herbs.