The wireless 5-in-1 sensor contains a self-emptying rain collector for measuring rainfall, anemometer, wind vane, temperature and humidity sensors. It is fully assembled and calibrated for easy installation. It sends data by a low power radio frequency 917MHz band to the main display unit up to 150m away (line of sight). The attractive multi-colour display shows all the weather data received from the 5-in-1 sensor outside. It remembers the data for a time range for you to monitor and analyse the weather status for the past 24 hours. It has advanced features such as the HI/LO Alert alarm which will alert the user when the set high or low weather criteria are met. The barometric pressure records are computed to give users forthcoming weather forecast and storm warning. Day and date stamps are also provided to the corresponding maximum and minimum records for each weather detail. The display can be desk or wall mounted, and push buttons on top of the display makes it easy to toggle between the different display options, including a large snooze button if you like your sleep-ins. The system also analyses the rainfall rate, and shows daily, weekly and monthly records. Wind-speed is expressed in Beaufort Scale, and readings such as wind-chill, heat Index, dew point, and comfort level are also provided. A mains power supply is included for the main display. FEATURES Attractive Colour Display Up to 150m Range Indoor & Outdoor Temperature (°C or °F) Min/Max Records Indoor & Outdoor Hygrometer Wind Speed (m/s, km/h, mph, or knots) Wind Direction Feels Like Wind Chill Dew Point Heat Index Rainfall (in or mm) Rain Rate Barometric Pressure (hPa, inHg, or mmHg) Moon Phase Time/Date Display High/Low Alarms 12 Hour Forecast Rainfall & Barometer Histogram Specifications Transmission frequency : 917MHz Transmission range : 150m Relative humidity range : 1%, 99% Sensor Type : Rocker Collector (Continuous Flow) Maximum Rainfall Reading : 9mm Outdoor / Exterior Scale : -40°C, 65°C Display Type : LCD Dimension details : Main Unit Width : 202mm Height : 138mm Depth : 38mm Weight : 500g Battery used for : Transmitter Size / Shape : AA Type : Alkaline Battery quantity : 3pc PSU Powers : Receiver DC Plugpack Voltage : 5V, 5V DC Current Draw : 300mA, 300mA Packaged Volume : 17.18l Packaged Weight : 1.88kg Packaged Length : 39cm Packaged Width : 28.8cm Packaged Height : 15.3cm Weather Station Style : Weather Station Sensor Type : Remote wireless sensor Dimensions details : Remote Sensor Width : 343mm Height : 393mm Depth : 136mm Dimension details : Display Area Width : 120mm Height : 90mm