1. It is portable, compact, easy to use and the moisture measurement readings are instant.Digital display with back light gives exact and clearly reading although you stay at the somber conditions. 2. It save time and expense by monitoring dryness and helps to prevent deterioration & decay caused by moisture whilst in storage, therefore processing be more convenient and efficient. 3. The moisture meter operates by electrical resistance and has automatic temperature compensation. 4.Measurements are taken by inserting the sensors into the bale of grains. 5. Manual off at any time .Auto power off after 5 minutes from last operation. Display: 4 digital LCD Measuring range: 6-30% Operating conditions:Temperature : 0-60C Humidity: 5%-90%RH Resolusion: 0.1 Accuracy: 0.5%n Power supply: 4xAAA battery(not including batteries) Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:As Shown Material:Metal + Plastic Package Contents: 1 x Humidity tester 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.