3.0 inches super large LCD indoor humidity monitor shows instant and current temperature</br>Records indoor room humidity and temperature (Fahrenheit or Celsius)?? temperature & humidity trend?? calendar and time (in 12 or 24 hrs format)</br>Humidity level icon indicates DRY/OK/WET indoor air conditions?? Humidity Range: 20%-95%RH?? Temperature Range: 23??F - 122??F (-5??C- 50??C)?? ??F/??C switchable</br>Auto records highest and lowest humidity and temperature?? reminds indoor and outdoor temperature over 24 hrs</br>Desk stand & wall mount design. A hanging structure with 3M sticker is provided for wall mounting. Need 2 AAA batteries (NOT included)</br></br>Product Description</br></br><p><b>Why We Need a Hygrothermograph?</b> <p>High humidity may cause respiratory and skin diseases?? such as asthma?? pneumonia and eczema; also?? food and wall will easily begin to get moldy. This Indoor Temperature and Humidity Monitor can record the indoor humidity which allows customers to check the current humidity and adjust the AC or humidifier to keep the indoor humidity in the suitable relative humidity. <p><b>Multifunctional Gadget </b>