TFA diva plus wireless weather station. transmission of outdoor temperature and humidity via up to 3 transmitters (maximum 100 m). Indication of indoor temperature and humidity, maximum-minimum-function. Weather forecast, tendency of atmospheric pressure, atmospheric pressure with bar graph indication of the last 24 hours. Radio controlled clock with date, time zone ±12 hours. Main unit: wall mounting or table standing. 3x 1.5V AA batteries included, EK-EL. Inside temperature measuring range: -10 to +60 degree C (+14 to +140 degree F). Outside temperature measuring range: -40 to +60 degree C (-40 to +140 degree F). Inside humidity range: 20 to 95 percent. Measures 102 mm width by 180 mm height by 33 mm depth.