Set the temperature and feel safe with this alarm thermometer. This device can be set with both minimum and maximum temperatures. If either temperature is passed, the audible alarm will sound at 51 dB. Displays can be read in either Fahrenheit or Centigrade and range from -4 to 158ºF (-20 to 70ºC). Accuracy is ±2ºF or ±1ºC. Uses one AAA battery (included). Five-year warranty.