[TEMPERATURE AND HUMIDITY READINGS]: The indoor hygrometer thermometer monitors humidity and temperature. It also shows the current status of the air conditioner, ensuring that temperature and humidity are properly controlled, which is good for skin and allergens, and can even give you a clue if you need to adjust the thermostat or the regulator. Temperature. Turn the humidifier on/off. [Backlight]: The indoor hygrometer with a 4.0 inch LCD screen provides a backlight for easy reading even in low light conditions, making it very convenient to to use. [Record High/Low]: The digital hygrometer automatically updates the maximum and minimum temperature and humidity records every 10 seconds in both modes (ALL THE TIME / 24 HOURS ), so you don't need to monitor a date or temperature and humidity change over time, and each reading arrow with trend icons is also displayed, giving you a better understanding of your surroundings . Multiple installation methods: There are desktop, wall-mounted and magnetic temperature and humidity installation designs, which are convenient for installation in any location. what piece. F/C selector; powered by one AAA battery (not included). AccuracyThe indoor thermometer has an accuracy of up to 1C and a relative humidity of 2% to 3%, ideal for children's homes such as living rooms, gardens, kitchens, greenhouses, guitar rooms, offices and basements. The perfect companionThis easy-to-read thermometer and hygrometer is the perfect way to track temperature and humidity. It is made of high quality materials for optimal longevity. It also features a foldable stand and magnetic back for easy installation. It provides various useful functions and options. Technical dataTemperature range: -50C to 70C Humidity range: 10% to 99% Comfortable Degree display: dry (humidity less than 30%); comfortable (humidity between 30% and 60%); HUMID (humidity above 60%)Temperature display unit: C and F adjustableTemperature resolution: 0.1 C/F < /li>Humidity resolution: 1% Update time: 10 secondsPackaging included&lt; li&gt;1 Thermometer and Hygrometer