This pro weather station collects all relevant information about weather conditions every day. You will see at a glance how temperature it happens inside and outside your home. But also air pressure, humidity, wind speed, rainfall. Moon Phase Time and date display Alarm clock with snooze function. Quick and easy to install. Other functions: dew point, display in 5 languages, trend indicator, mini / max display, relative or absolute air pressure, data history, weather forecast between 12 and 24 hours within a range of 30 to 50 km, alert for certain weather conditions (frost, wind, etc.), RCC function, Beaufort scale. CPU power supply: 3 x AA 1.5 V batteries (not included, alkaline batteries recommended). Outdoor sensor power supply: 3 x AA 1.5 V batteries (not included, lithium batteries recommended). Range in open field: 150 m* (max. 150 m range. : The indicated radio range is the range in an open field, i.e. without obstacle between the receiver and the transmitter. Any obstacle or disturbance reduces this range). Instructions inside.