Over/lower limit alarm: This thermo-hygrometer has an intelligent alarm function that allows you to set upper and lower limits for humidity. As soon as the humidity in the environment exceeds your preset range, an alarm is immediately triggered. The alarm frequency is 60S/time.Magnet & Holder: This digital temperature and humidity meter is equipped with magnets on the back, which can be easily magnetized to the surface of ferrous objects such as refrigerators, metal furniture, etc. It also comes with a stand that allows you to stand the unit stably on a desk, windowsill or other flat surface.Large LCD display: the digital thermometer hygrometer has a large LCD display, which clearly displays temperature and humidity data as well as other relevant information. Thanks to the large display, the numbers and characters stand out clearly, so that the data can be easily read regardless of the position in the room.Temperature humidity monitor: The LCD thermohygrometer is able to monitor the temperature and humidity changes in the environment in real time. You can always know the temperature and humidity condition of the current environment and can follow the change of clothes in time.Comfort display: This digital temperature and humidity meter has a comfort display with icons that allow you to quickly see if your current environment is too dry, too humid or in a more comfortable state.