Digital Hygrometer Indoor Thermometer And Humidity Indicator With Monitor(67x78x22mm) Accurate measurement and quick update: Thermometer and hygrometer combination provides temperature measurement result between -50C and 70C, available in C or F. Humidity measurement range is between 10% and 99%. Readings are automatically updated every 10 seconds thanks to the built-in sensitive sensors. Innovative room climate indicator: the hygrometer displays the current humidity and temperature in the form of adorable symbols. If the room climate is too wet or too dry, the smiley is unhappy, so you can easily inform you of the action needs for room temperature control. Maximum and minimum record : With the compact room thermometer, the maximum and minimum values are automatically saved since the last reset, allowing you to easily keep an eye on the changing climate of the room. Three mounting options: in in addition to a folding base and a wall hook, this humidity meter also has a magnet on the back to attach it to the refrigerator, for example. Universal use: an ideal indoor climate has a positive effect on our well-being and health. Thanks to its compact design and any assembly, the room thermometer can find its place in any room - practical for climate monitoring at home or in the office.