High Accuracy & Fast Update: This updated indoor thermometer measures temperature from -50~70℃ (-58~185℉) with an accuracy of ±1℃. It measures humidity from 10% RH to 99% RH, with an accuracy of ±2% for 30%-80% and ±3% outside this range. Featuring 27 vents and sensitive sensors, this large-screen thermometer updates readings in just 3 seconds, perfect for bedrooms, nurseries, greenhouses, offices, and wine cellars. Touch Backlight & Large Screen: The room temperature monitor boasts a 3.05-inch large screen for easy reading from any angle. Its touch-sensitive backlight can be activated by tapping the top and automatically turns off after 10 seconds, making it convenient to read in the dark. Comfort Level & Trend Indicator: The thermometer hygrometer displays comfort levels with three icons: Wet/Comfort/Dry, indicating different temperature and humidity conditions. It also shows trend changes for each reading, allowing you to monitor your home's environment and make adjustments easily. MAX/MIN Record & Rechargeable: This humidity and temperature monitor displays maximum and minimum records for both humidity and temperature, updated constantly and within 24 hours. It comes with a built-in rechargeable battery, eliminating the need for replacements, and features a low battery indicator. A reset option is also available. Smart Design: With an adjustable stand, this indoor thermometer can be placed at a 40° or 70° angle. It also includes a hanging hole and a strong magnetic back for versatile placement. Press and hold the / button for 3 seconds to switch between °C or °F.