La Crosse Technology WS-9057U-IT Forecast Station with Barometer, Temperature, Humidity and Moon Phase, Alarm Weather forecasting icons with tendency arrows Indoor & Outdoor temperature (F/C) with humidity (%RH) Records MIN/MAX values with time stamp Barometric pressure with historical graph Radio-controlled atomic time & date with automatic updates for Daylight saving time The TX29UDTH-IT is the only recommended sensor to use with this unit.