Wood Moisture Meter High Precision Adjustable for 4 tree species temperature Grain RZ GM620 1>We always have enough products in stock. 2>We send all the parcels by registered Airmail except you specify another shipping method. All parcel has tracking number. 3> This unit doesn't include batteries. Because the international air shipping forbid us to ship liquid, powder and batteries, so we can not put them in the package. Hope you can understand & buy the batteries in your local store or supermarket. Thanks for your support! If you don't accept this, please do not place an order . 4>For big order, we'll provide you big discount. 5-All of our products are under 1 year guarantee This precision instrument adopts the most advance SCM technology,can measure accurately and conveniently.Equipped with 4 adjusting levels it can pick up the moisture value more accurate. *Model:GM620 *Data hold function *Adjustable for 4 tree species *Auto Temperature compensation Measuring Range 2~40%50%/60%/70% Resolution 0.5% Temperature Range -10~60C Humidity Range 20%RH~90%RH Moisture Response Speed Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.