Features: 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 will save time and expense by monitoring dryness and helps to prevent deterioration & decay caused by moisture whilst in storage, therefore processing will be more convenient and efficient. 4.The moisture meter has automatic temperature compensation. 5.Data hold function. Specification: Display:4 digital LCD Measuring range :0-84% Working condition: Temperature:0-60; Humidity:<90%RH Resolusion:0.1 Accuracy: 0.5%n : Electrical Resistance Method, Automatic temperature Compensation Power supply: 4x1.5 AAA size (UM-4) batteryBattery not included in the package Dimensions: 460mm75mm35mm Needle:280mm Weight:203g (not including batteries) Package Contents: 1*Hay Moisture Meter Tester 1*User manual How to use: 1. Power on: press the power button. 2. for Zero calibration: press for Zero button, the probe cannot touch anything. 3. Measure: hold the meter and insert the probe into the object measured. 4. Maximum value retention: press the hold button, the word 'MAX' will appear on the left side of the screen, and the measurement maximum value will be displayed on the screen.Press the button again to cancel. Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.