Features: OOTD Temperature/Humidity Values: this digital thermometer hygrometer shows the indoor temperature and humidity at the same time, so you can read the temperature and humidity at any timeHigh accuracy: this indoor temperature range: -10 °C-50 °C(14 °F-158 °F), humidity range: 10%-99%; Temperature accuracy: ± 1 °C/± 2 °F, humidity accuracy: ± 5%. Max/Min records and °c/°F switch key: can record the highest/lowest temperature and humidity, so you can check for subtle changes in temperature or humidity every day; You can press the °C/°F button to select Celsius or Fahrenheit. Large Screen Displays: The large LCD screen can be clearly displayed temperature and humidity values and characters, suitable for indoor places such as bedroom, kitchen and living room. Portable Design: Portable and simple to use design, you can hang on the wall or place a table. It needs 1 AAA battery to turn on. (Battery not included)Specifications:Temperature Range:-10 °C-50 °C(14 °F-158 °F)Temperature Accuracy: ± 1 °C/± 2 °F Humidity Range: 10%-99%Humidity Accuracy: ± 5%Resolution: 0.1 °C (Temperature) 1% RH (Humidity) Measuring Interval: About 10 seconds Material: ABS Color: White Dimension: 11x10x2cm (4.33x3.93x0.78in)Battery: 1 * AAA Battery (Not Included)Note:1. Do not immerse it in water or it will be damaged.2. Do not clean it with benzene, diluent, or other solvents. Clean it with a cloth if necessary.3. Please do not fall or hit hard, it is easy to cause trouble.4. When the data is unclear and the battery is not enough, replace a new battery and after reinstalling the battery, the high/low temperature humidity memory is erased.5. Please allow 0-2cm slight deviation due to manual measurement. Thank you!6. Needs 1 AAA battery to turn on (not included in the package)Package Included:1 x Room Thermometer Hygrometer