Features: 1. Measuring range:humidity is 7.5% to 50%. LCD backlight:you can control it and see it clearly in dark environment. 2. Auto power off:it will power off in 15 minutes without any operation. 3. Double sensor for high precision and stable performance. You can choose grain species by preing the key "varieties". 4. Includes low battery indication, data hold, drift adjustment and alarm setting functions. 5. The moisture meter can quickly measure the moisture content in the beans. Description: Smart Sensor Moisture Meters are used to measure the percentage of water in a given substance. This information can be used to determine if the material is ready to use, unexpectedly wet or dry, or needs further inspection. Specifications: Measurement Principle:Resistance method Precision:0.1 / 01% Display backlight:Ye Adjustment deviation:Ye Voice:Ye Resistance to alarm setting:10 presets (adjustable) Memory function:Ye Can:4 x 1.5V AA batteries (not included) Product size:80x43x425mm Package Included: 1 set * Moisture Meter(battery not included) Notes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.