Features:brand new and high qualityThe advanced humidity sensor maintains +0.5%/ - 0.5% accuracy.Round silver shape, placed in the cigar box to highlight the low for key luxury beauty.High precision, clear numbers, accurate scales, and good pointer stability, does not need to replace the battery.The humidifier keeps the moisture inside the cigar box, which provides favorable conditions for the fermentation ripening of the cigar.Professional cigar hygrometer cigar humidor humidifier portable mechanical humidor hygrometers for cigars. Specifications:Material: Aluminum Alloy Color: Silver Package Weight: approx.13gTotal Diameter: approx.57mm/2.24inTotal Thickness: approx.12.5mm/0.49in Note:Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes:1Pc x Round Cigar Hygrometer