This useful household gadget announces both the indoor and outdoor temperatures. Outdoor temperature is measured using a wired probe. This unit has a built-in stand for desktop use or can be wall-mounted with the included screws. The dual digital LCD display is large and bold. There are four modes of display: indoor/outdoor, indoor/time, outdoor/time, and alarm/time. This talking thermometer has volume control and an on/off switch. You can set the thermometer to announce the temperature hourly, or hear it at any time by pushing a button. The temperature range is -58 degrees F to 158 degrees F (-50 degrees C to 70 degrees C). You can choose to display and hear temperatures in either Fahrenheit or Celsius. High temperature and freezing temperature alerts by voice and flashing display. Daily high and low temperature announcement with time stamp. Uses 2 AAA batteries, not included.