Small and lightweight, easy to carry around. Provides accurate humidity readings with high precision. Versatile design, suitable for cigar boxes, violin cases, and more. A must-have for every household, ensures optimal indoor humidity levels. Features -Color:Multi -Material:Metal -Size:2.80X2.80X0.90cm/1.10X1.10X0.35in -Small and lightweight, easy to carry around. Provides accurate humidity readings with high precision. -Stylish and beautiful in appearance, making them a good choice as gift for fathers, boyfriends, husbands and friends. -Versatile design, and this hygrometer is suitable for cigar boxes, violin cases, and more. -Elegant, stylish and unique design, perfect for your own use or as a gift. -A must-have for every household, ensures optimal indoor humidity levels. -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: 5 x Hygrometer