AcuRite 00613 Humidity Monitor with Indoor Thermometer, Digital Hygrometer and Humidity Gauge Indicator Indoor thermometer displays temperature in Fahrenheit or Celsius. Indoor Temperature Range: 32 to 122 degrees Fahrenheit; 0 to 50 degrees Celsius Humidity gauge shows the comfort level of your home, based on current humidity level Track conditions throughout the day with the high and low records to ensure a healthy home. Humidity meter features a magnet-mountable design, fold-out stand and clip; Powered by (1) AA battery (not included) Includes limited 1-year warranty; Knowledgeable US-based customer service team