WH-1080PC Prowler Weather Station & Multifunction LCD Clock - Prowler Professional Wireless Weather Station and easyweather software - Wireless Weather Station with Outdoor Temperature Sensor - Features include: LCD Touch screen panel, USB port for easy connection to your PC. All the weather data from the base station and weather history data with user adjustable measuring intervals can be recorded and uploaded to your PC, Free PC software for transfer weather data to PC, rain gage, Wind chill and Dew point temperature display, barometer, Wind speed, and wind direction. Specifications: Outdoor Data Transmission distance in open field: 300ft. (100m) Temperature Range: -40F to 149F (-40C to 65C) Resolution: .1 degrees Measuring Relative Humidity: 10% to 99% Resolution: 1% Rain Volume Display: 0 to 9999mm Resolution: .3mm (if rain volume is <1000mm); .1mm (if rain volume is >1000mm) Wind Speed: 0-100mph (0-160kph) Accuracy: +/- 1m/s (if wind speed < 10m/s); +/- 10% (if wind speed > 10m/s) Measuring interval thermo-hygro sensor: 48sec Water Proof Level: IPX3 Indoor Data: Measuring Interval Pressure/temperature: 48 sec. Indoor Temperature Range: 32F to +122F (0C to 50C) Accuracy: +/- 1C Resolution: .1C Measuring Range Relative Humidity: 10% to 99% Accuracy +/- 5% Resolution: 1% Measuring Range Air Pressure: (8.85-32.5 inHg) 300-1100 hpa Accuracy: +/- 3hpa under 700-1100hpa Resolution: .1hpa (.01inHg) Alarm Duration: 120 sec Power Consumption Base Station: 3 AA 1.5V Alkaline Batteries (Not included) Remote Sensor: 2 AA 1.5V Alkaline Batteries (Not included) Battery Life: Minimum 12 months for Base Station - Minimum 24 months for thermo-hygro outdoor sending unit sensor and transmitter.