Features: This double display digital indoor thermometers with magnetic backing features a high precisions sensor for realtime temperature/humidity monitoring (±1℃ accuracy) and instants readings, perfect for home climate controling. Its large screen displays clear ℉/℃ readings and comfort reminder, while compacts plastic design ensures space saving placement in any room. Ideal for families with elderly members or children, the large font display eliminates squinting and provide instants environmental awareness for sensitive groups. Monitor nursery humidity for infants comfort, optimizes greenhouses conditions for plant, or maintain ideal office environment using wall mountable or freestanding hygrometer. Operates continuously with two AAAbatteries (not included), feature -4°F to 158°F ( -20°C 70°C) temperature ranges and 10%-99% humidity detection for comprehensive environmental tracking. Specifications: Component: Plastic Optional Color: Black, White Size: approx. 7.9x5.8x2.3cm/3.11x2.28x0.9in Power Supply: 2pcsAAA batteries(not included) Temperature Measurement Ranges: -20℃-70℃ (-4℉-158℉) Temperature Accuracy: ±1℃/±1.8℉ Humidity Measurement Ranges: 10%-99% Humidity Accuracy: ±5% Function: 1. Temperature 2. Humidity 3. Comfort Reminder 4. ℃/℉ switchable 5. Magnets 6. Touch sonsing backlight (automatically turn off after about 10seconds) 7. Record of maximums and minimum temperature and humidity within 24hours Package Includes: 1pc Digital Thermometers Hygrometer note: Please allow 1-3cm error due to manual measurement. please make sure you not mind before you bid. Due to the differences between different monitors, the picture may not reflect item's actual color.