Transmission of outdoor values wireless (max. 100 m), display of outdoor temperature and humidity, rainfall quantity, wind velocity and direction, indoor temperature and humidity with comfort level indicator, absolute and relative atmospheric pressure with 24 hours history, weather forecast and tendency of atmospheric pressure, bar graph indication of atmospheric pressure, temperature or humidity for the last 24 hours, calculation of windchill factor and dew point, max.-min.- function, programmable alarm functions for certain weather conditions like temperature alarm, storm warning, radio controlled clock with different alarms and snooze function, display of date and weekday (6 languages), time of sun rising and setting, indication of moon phase, data memory for 3000 weather records, PC- Interface with analysis software package. LED backlight with light sensor (in continuous operation with power adapter), measuring range temperature outdoor - 40…+80°C (-40…+176°F), indoor -10…+60°C (14…+140°F), reversible °C/°F, humidity 1…99%, for hanging or standing.