AcuRite 00325 Indoor Thermometer with Digital Hygrometer and Humidity Gauge

This monitor features indoor temperature and humidity sensor. The humidity sensor expresses relative humidity. The home comfort monitor records the indoor temperatures and humidity using its daily high/low memory. The at-a-glance comfort icon shows low, high or OK humidity level to know at a glance the humidity reading in your home. On the back of the unit, an integrated magnet allows the monitor to be placed on a refrigerator door any other magnetic surface to allow for quick setup. Records temperature in either Celsius or Fahrenheit has a temperature range from 32-Degree Fahrenheit to 122-Degree Fahrenheit (0-Degree Celsius to 50-Degree Celsius) and a Humidity range from 20-95-percent RH. Requires one AA battery (not included).