Corded electric weather station requires (incl) power adapter for Full Illumination for Color animated forecast icons Indoor & wireless outdoor temperature (f/c) & humidity (%RH) with trends & min/max values 24 hour barometric pressure history graph Atomic self-setting time & date with automatic daylight saving time resets Low battery indicator for both display & sensor Color animated forecast icons with color LCD digits Indoor & wireless outdoor temperature (f/c) & humidity (%RH) with trends & min/max values 24 hour barometric pressure history graph Atomic self-setting time & date with automatic daylight saving time resets Low battery indicator for both display & sensor Back light control (High/Low/Off) Unit must be plugged in with included AC cord for continuous back light