43mm / 1.7 inch instrument case thermo-hygrometer for musical instruments such as violin, guitar, temperature and humidity measurement. Aesthetics: The thermometer and hygrometer use an alloy frame, which is not only very durable, but also exquisite in workmanship and appearance. Function: mainly used for humidity and temperature measurement of musical instruments such as violin, guitar, etc. Measuring range: humidity measurement in the range of 20~100%, display in ℃, temperature measurement ℉ in the range of - 25 ~ 55 ℃ / - 13 ~ 130, display in ℉. Good accessories: the thermometer and hygrometer are small and portable, can be placed on a violin or guitar case, require no batteries, and can clearly display current humidity and temperature. Very beneficial for the storage and maintenance of your precious instruments. Great gift: This thermometer and hygrometer is a practical gadget for instrument enthusiasts and those who receive this gift will be happy. Description: This thermometer and hygrometer is a practical gadget for instrument lovers. It is small and portable, can be placed on a violin or guitar case, requires no batteries, and clearly displays current humidity and temperature. Very beneficial for the storage and maintenance of your precious instruments. Features: With alloy frame, exquisite workmanship and exquisite appearance. Round, small and portable, it does not take up much space. Humidity is measured in the range of 20~100%. Temperature measurement in the range of - 25~ 55°/- 13~130°, simultaneous display of ° and °. It is mainly used for humidity and temperature measurement of musical instruments such as violin, guitar, etc. Specifications: Material: Alloy Color: Silver Suitable for: Violin, guitar, instrument case, etc. Humidity range: 20~100% RH Temperature range: - 25 ~ 55° / - 13 ~ 130° Outer diameter: about 4.3 CM / 1.7 inches Package Included: 1 x hygrometer thermometer instrument There may be size errors in the product you receive due to manual measurement The product you receive may differ slightly from the original image due to different monitors Thank you for meeting me, I hope I can help you. Good life 100% satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service after purchase