[TWO IN ONE DESIGN] 2-1 Indoor Thermometer & Hygrometer is great to keep track of the temperature and humidity, temperature measurement range: -40~140°F (-40~60°C), Accuracy: +/-2°C; Humidity measurement range: 0~100%RH, Accuracy: +/-7% RH (40~70%RH). [EASY TO READ] The Humidity Gauge is handcrafted from solid plastic with fine and clear dial, easy to read the scale. It is easily readable from a distance because of the large display in 10inch Diameter . The temperature shows both °C and °F readings. [GOOD FOR HEALTH] Thermometer hygrometer monitor ensures proper indoor / outdoor temperature and humidity control which is important to skin, allergen and other health benefits. [NO BATTERY REQUIRED] 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. [WIDE APPLICATIONS] The weather thermometer doesn't take up a lot of space, just hang it on the wall. Perfect for houses, offices, workshops, schools, markets, warehouses, kitchen, etc. High precision and comfortable color to distinguish, able to cope with modern home decoration. Material:plastic colour:Black Package Contents: 1 x Thermometer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.