Features: The Humidity Gauge is handcrafted from solid aluminum alloy with fine and clear dial, easy to read the scale. It is easily readable from a distance because of the large display. The temperature shows both C and F readings. Thermometer hygrometer monitor ensures proper indoor temperature and humidity control which is important to skin, allergen and other for health benefits. 2-1 Indoor Thermometer & Hygrometer is great to keep track of the temperature and humidity, temperature measurement range: - -20~120F (-30~50C), accuracy: +/-5F.; Humidity measurement range: 0~RH, accuracy: +/-7%RH (40~70%RH). The design is small, doesn'for t take up a lot of space. It is suitable for houses, offices, workshops, schools, markets, warehouses, kitchen, etc. High precision and comfortable color to distinguish, able to cope with modern home decoration. Exquisite design can be used as an adornment. Mechanical thermometer and hygrometer has a longer life expectancy in use, no battery required. Avoid violent vibration and hitting, and do not disassemble by yourself. Specifications: Material: Aluminum Size: 57x57x12mm/2.2x2.2x0.5 inch Temperature measurement range: -20~120F (-30~50C), accuracy: +/-5F. Relative humidity measurement range: 0~100%RH, accuracy: +/-7%RH (40~70%RH) Note: Please allow 1-3cm error due to manual measurement. pls 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. Package includes: 1x Green Thermometer Hygrometer