Error: 0.5% Ambient temperature: -25-50 Measuring range: 1%-49% Temperature compensation: -9-15 Resolution: 0.1% Model:JGL-188 Type:Portable moisture meter Operation method: Install the battery: open the battery compartment and install the battery (negative pole is connected to the spring). Switch machine: The instrument panel is equipped with a switch button, and the instrument automatically shut down without a long time. Type selection: the panel type key to adjust the type, 14 types are displayed in a loop, and the measurement can be done after adjusting to the required type. Lock key: After the instrument measures and reads the number, the lock key to lock the value on the screen for visual confirmation. Moisture adjustment: Due to differences in regions or varieties, the instrument presets have limitations, and errors may occur when measuring local varieties. The values can be corrected to accuracy. the panel trim button, the adjustment value appear on the screen, adjust according to the difference between the measured data and the standard data Color:As Shown Material:plastic Package Contents: 1 * Digital Grain Moisture Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.