Full color display gives you current temperatures & humidity, with a future forecast whether it could be sunny or rainy to snowy. Features accurate, self-set atomic time & date with automatic DST updates. Records MIN/MAX values and alerts you of extreme temperatures. Also displays your heat index and dew point. Will indicate of weak or low battery and the signal reception strength. Included 5.0V AC adapter for continuous backlight or, batteries required (not included) for back up operation.