HIGH ACCURACY TEMPERATURE GAUGE: Our outdoor thermometer has been meticulously calibrated in factory, and it can precise automatically read, operates without the need for batteries.Using our thermometer, You can know the surrounding air temperature and humidity anytime and anywhere MEASURING RANGE: Our indoor outdoor thermometer, suitable for both indoor and outdoor use, offers a temperature range from -40 to 50°C (-40 to 120°F) and a humidity range of 0 to 100% . It boasts an accuracy of ±4°F (±2°C) and ±5% . OUTDOOR TEMPERATURE with HUMIDITY: Our 4'' brass outdoor thermometer operates entirely mechanically and no need to use batteries. It's the perfect outdoor thermometer for monitoring temperatures in your garden, patio,garage or greenhouse. HIGH QUALITY-PREMIUM BRASS MATERIAL: Made of brass with a vintage design,high quality more . The outdoor thermometer also can be used as a decoration to add of sophistication to your outdoor place, suitable for a variety of occasions, including greenhouses, backyard patios,gardens,garage etc. QUICK INSTALLATION:This outside decorative thermometer comes with 2 screws, installs it in seconds - simply mount it or your window. Designed as a window outdoor thermometer, it ensures a seamless experience whether used as an indoor or outdoor thermometer., Manufacturer: Akfldms