LaCrosse Technology Pro Center Professional Weather Center gives you complete, accurate information wirelessly to the indoor base unit. Features a Solar-powered wind sensor and USB transceiver for ing all historical weather data with storage up to 3,000 sets of data. Pressure graph, IN/OUT temp & humidity, Wind speed, chill, direction, gust, Total & 24 hour rainfall with HI/LO and MIN/MAX value alarms. Includes wireless Thermo-Hygro sensor, wireless rain sensor, solar-powered wireless wind sensor, USB transceiver, base unit. * Time display in 12/24 hour time format * Automatic time and date (PC time) update from USB transceiver if connected * Calendar display (date, month, year) * Weather forecast with 3 weather icons (sunny, cloudy, and rainy) with weather tendency indicator * Temperature display in °F/°C: from-39.8°F to 139.8°F * Humidity display in RH%: from 1% to 99% * Dew point display in °F/°C: from-39.8°F to 139.8°F * Wind chill display in °F / °C: down to -39.8°F * MIN/MAX values of indoor/outdoor temperature, indoor/outdoor humidity, dew point display with time and date of recording * Relative air pressure reading in inHg/hPa: preset range 27.10 to 31.90 inHg * 24h/72h history graph selectable * Wind speed displayed in mph, km/h, m/s, knots, and Beaufort scale: 0 to 111.8 mph * Wind speed & direction with LCD compass display (16 steps/ 22.5 degree) * MAX records for wind gust with time & date of recording * Rainfall display in inch/mm: from 0” to 393.6” * Rainfall data for total rain, last hour, last 24h, last week, last month * Weather alarm modes: temperature, humidity, wind gust, wind direction, air pressure, 24h rain and storm warning * Buzzer on/off select * LCD contrast setting * Storage of 1750 sets of weather records with user selectable recording interval from 1 minute to 24 hours Weather history PC software: Stores collected weather data, creates graphs, synchronizes time/date, updates user settings and sets weather alarms Works with Windows XP, Vista, Windows 7 Wireless USB transceiver: USB transceiver plugs into your PC to transfer and share the collected weather data from your weather display with your PC Wireless rain sensor: * Self-emptying bucket * Transmission range: over 200 feet (Open field, free of obstructions) Wireless solar-powered wind sensor * 100% solar-powered with built-in rechargeable alkaline power cell * High-efficient solar panels maintain operation throughout all seasons * Transmission range: over 200 feet (Open field, free of obstructions) Wireless thermo-hygro sensor: * Transmission of temperature and humidity data * Transmission range: over 200 feet (Open field, free of obstructions) Specifications: