Large Outdoor Thermometer Decorative: 2-1 Indoor Thermometer Hygrometer is great to keep track of the temperature and humidity, 12 inch diameter round wall thermometer hygrometer accurately measures temperatures from -50 ~ 60C (-60 ~140F), Accuracy: +/-2C; Humidity measurement range: 20~90%RH, Accuracy: +/-7% RH (40~70%RH). the round outdoor thermometer accommodates all general temperature and humidity changes. Durable Materials: The decorative outdoor thermometer and hygrometer consists of sturdy aluminum bottom case, acrylic lens, and aluminum pointer, will not rust like metal ones. You can use this large round thermometer for a long time without damage, even if you put it outside. Easy to Read: Our outdoor thermometer is 12 inch large dial, decorative with blue, red indicating pattern on dial surface. And clear scale lines, black bold numbers for easy reading, luxurious silver frame make your room more unique. With keyhole on the back, you can hang the thermometer on the wall and reading from a long distance conveniently. Automatic Calibration within 2-3 Hours: This weather thermometer with a precision-made thermometer coil ensures accurate readings. This hygrometer uses a built-in mechanical movement that enables real-time sensing, so you don't need to calibrate it and does not require a battery. Wide Application: 12'' hanging thermometer and hygrometer can be placed indoors or outdoors. Its stylish and refined shape makes it a perfect addition to any patio, room, garden, kitchen, room, pool, office buildings, hotels, school, shops, warehouse, etc, make your life environment more coordinated, fulfilling and perfect. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.