Indooroutdoor temperature anddeg C or anddeg F Wind speed & direction mph or kph Self emptying rain gauge mm or inches Indoor outdoor humidity Barometer pressure with trends Easyweather software included to link to PC via USB (Universal Serial Bus) Historic data storage & display stores data on PC only LCD panel wall mounts or desk mounts Wireless range up to 60 metres clear line of sight Batteries last over 12 months Operates on 5 x AA batteries sold separately The large LCD touchscreen makes the operation of the unit incredibly simple & allows comprehensive adjustment & correction for your location. The USB (Universal Serial Bus) wireless weather forecaster requires no connecting cable between the base station & the remote weather transmitting sensors with a typical sensor range of 60m 200ft. It can also display historic data & within the menu you can select metric or imperial values. Programme the LCD panel & download stored data & then display it in data base format for keeping your own weather history. If you are in an area or situation where weather plays a critical part then you can switch on an alarm that can be triggered by any of the data sensors. This weather station offers amazing value & comes with everything you need to set it up in the garden. The system comprises large 23 x 14.5 x 3.5 cm LCD control panel wind speed sensor wind direction sensor rain gauge outside temperature sensor & transmitter stub mast sensor mounting arms sensor cable harness USB (Universal Serial Bus) lead & PC software not MAC compatible