WEATHER STATION Designed for Easy Installation and Use WeatherHawk™ 232 Weather Station comes fully assembled, so within minutes you can begin monitoring weather information. All components are tested and calibrated before assembly so you don’ t have to do it! For use, simply install the included software on your PC; then take the unit out of its box, plug in the Solar Panel ( sold separately) , place it in the desired location ( on a post or tripod) and turn it on. It doesn’ t get any easier than this!  WeatherHawk™ 232 Weather Station is RS-232 hard-wired. Includes sensors for air temperature, relative humidity, barometric pressure, rainfall, solar radiation, wind direction and wind speed. The sensors are contained in a protective case that also houses the on-board microprocessor, rechargeable battery pack and spread spectrum radio transceiver. An internal datalogger records up to 3 wk. of hourly data. The battery is recharged using the AC Converter or the 5W Solar Panel Kit, both sold separately. Note: WeatherHawk™ Weather Station is GLOBE approve Features Transmission Options WeatherHawk 232 Choose this if you intend to directly connect your weather station to a personal computer ( PC) . WeatherHawk 916 Wireless 916 MHz weather station. Choose if you live in Mexico; or North, Central or South America. WeatherHawk 922 Wireless 922 MHz weather station. Choose if you live in Australia, New Zealand or Israel. WeatherHawk 240 Wireless 2.4 GHz weather station. Choose if you live in a country that licenses the 2.4 GHz frequency for spread spectrum radios. Air Temperature Sensor: Thermistor Operating Range: -40º to + 122º F ( -40º to + 50º C) ; 0 to 100% RH Temperature Accuracy: ± 0.9° F ( ± 0.5º C) Temperature Interchangeability: ± 0.36° F ( ± 0.2º C)  Relative Humidity Sensor: Precision, temperature corrected, bulk polymer RH Accuracy: ± 5% for 90% to 100% RH; ± 3% for10% to 95% RH Barometric Pressure Sensor: Piezoresistive transducer Range: 15 to 115 kPa ( 4.43 to 33.96 inches of Mercury)  Accuracy: < ± 1.5% of Full Scale Reading ± 1.5 kPa ( 0° to + 85° C) ± 0.443 Hg Rain Gauge Sensor: Tipping bucket Orifice: 7.75 in2 ( 50 cm2)  Resolution: 0.04" ( 1 mm)  Note: Optional high accuracy ( 0.01” / tip) , external tipping bucket available Solar Radiation Sensor: Silicon pyranometer Spectral Range: 300 to 1100 nm Accuracy: ± 2.5% Output: ~ 0.25 mV per W m-2 Operational Range: 0 to 2000 W m-2 Temperature Range: -40° to + 130° F ( -40° to + 55° C)  Wind Wind Direction Sensor: Vane Range: 360º mechanical, 352º electrical Linearity: 1% Sensitivity: ~ 1 m s-1 ( 2.2 mph)  Wind Speed Sensor: Cup anemometer Starting Threshold: 0.78 m s-1 ( 1.75 mph)