Humans spend at least two-thirds of their lifetime indoors. Whether we feel comfortable and at ease there largely depends on the quality of the indoor air. The digital thermo-hygrometer is an ideal measuring instrument for monitoring the indoor climate. You can easily keep an eye on room temperature and humidity and regulate them through targeted heating and ventilation. This way, you create a cozy and healthy living environment while also saving on heating costs. The maximum and minimum values over a user-defined period can be retrieved at the push of a button. Additionally, the thermo-hygrometer displays the time or date and includes an alarm function. The optional hourly chime can remind you at the top of each hour. The thermometer is powered by a standard AAA battery 1x 1.5 V (not included).