1. It is portable, compact, easy to use and the moisture measurement readings are instant. 2. Digital display with back light gives exact and clearly reading although you stay at the somber conditions. 3. 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. 4. The moisture meter operates by electrical conductivity and has automatic temperature compensation. 5. Manual off at any time. Auto power off after 5 minutes from last operation. Data hold function. Low battery alert. Display: 4 digital LCD Measuring range: 4-90%(Cd01) Operating conditions: Temperature: 0-60°C Humidity: 5%-90%RH Resolutions: 0.1 Accuracy: ± 0.5%n Operating principle: Electrical conductivity, Automatic temperature Compensation Power supply: 4x1.5AAAsize (UM-4) battery(not included) Sensor:175mmx40mmx20mm Colour:White Material:plastic+metal Package Contents: 1 x Yarn Moisture Meter(without battery) 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.