The small Cigar Box Hygrometer is compact, lightweight and practical, simple and generous, simple and easy to carry. Accurate and reliable humidity measurement. Versatile usage, suitable for cigar enthusiasts and musicians. Features -Color:Multi -Material:Metal -Size:2.80X2.80X0.90cm/1.10X1.10X0.35in -Conveniently sized for easy transportation, sturdy, easy to carry, stylish, and convenient. -The small Cigar Box Hygrometer is compact, lightweight and practical, simple and generous. -Accurate and reliable humidity measurement. Simple , but very practical to use. -Versatile usage, suitable for cigar enthusiasts and musicians. A must-have tool for smokers -Sturdy materials and good workmanship, it can effectively view the humidity. -Cautions: -When using for the first time or changing the environment, please hang the product in an open and well-ventilated area so that the measured value is closer to the ambient value. -Do not place this product near heat or cold sources! Do not use this product beyond its measurement range! -The local index should not exceed or fall below the value on . -Avoid direct sunlight, as the temperature under sunlight will be much higher than the air temperature due to the metal sensor. -This product is a hygrometer that on physical sensing. -An error of ±5% is normal -If the pointer reading is inaccurate, blow warm air a few times towards the small hole on the back of the humidity pointer. If the humidity pointer changes, the hygrometer is indicating correctly Package list: 1 x Hygrometer