Description: This listing includes: 1 unit of weather station (433MHz) Features: 1) Rainfall data (inches or millimeters): 1 hour, 24-hour, and total 2) Wind chill (F or C) 3) Records min. and max. wind chill 4) Wind speed (mph, m/s, km/h, knots, Beaufort) 5) Wind direction 6) Weather alarm modes 7) Dew point (F or C) 8) Records min. and max. dew point with time and date stamp 9) Outdoor and indoor humidity (%RH) 10) Records min. and max. humidity 11) Outdoor and indoor temperature (F or C) 12) Records min. and max. temperature 13) Time and date with manual setting 14) 12 or 24-hour time display 15) Perpetual calendar 16) Time zone setting 17) Time alarm 18) LED backlight 19) Wall hanging or free standing 20) Synchronized instant reception Package includes: 1) main unit (display unit) 2) Outdoor unit LCD Display The following illustration shows the full segments of the LCD for description purpose only and will not appear like this during normal operation and use. 1.Time alarm on icon 2.Date of the week/time zone 3.Date 4.Wind direction alarm 5.General Max record 6.Wind direction 7.General Min. record 8.Rainfall high alarm 9.Indoor temperature high alarm and low alarm 10. Temperature unit 11. Indoor temperature 12. Indoor humidity high alarm and low alarm 13. Indoor humidity 14. Rainfall unit 15. Outdoor temperature high alarm and low alarm 16. Outdoor temperature 17. Outdoor reception signal 18. Outdoor Humidity 19. Outdoor transmitter low battery indicator 20. Outdoor humidity high alarm and low alarm 21. Rainfall 22. Rainfall 1h,24h, week, month or total display 23. Wind speed 24. Wind speed unit 25. Wind speed high alarm 26. Time 1. Wind Speed Sensor 2. Wind Vane 3. Thermo-hygro sensor 4. Rain collector 5. Bubble level 7.Antenna 8. U-Bolt 9. Battery compartment 10. Reset button 11. LED Indicator: light on for 4s if the unit power up. Then the LED will flash once every 48 seconds (the sensor transmiion update period). Specifications Outdoor data Transmiion distance in open field :100m(300 feet)(theres no obstacle in between) Frequency :433MHz Temperature range :-40C--60C (-40 to +140) Accuracy :+ / - 1 C Resolution : 0.1C Measuring range rel. humidity : 10%99% Accuracy : +/- 5% Rain volume display : 0 9999mm (show --- if outside range) Accuracy : + / - 10% Resolution : 0.3mm (if rain volume < 1000mm) 1mm (if rain volume > 1000mm) Wind speed : 0-180km/h (0~110mph) (show --- if outside range) Accuracy : +/- 1m/s (wind speed< 10m/s) +/-10% (wind speed > 10m/s) Measuring interval thermo-hygro sensor: 48 sec Water proof level : IPX3 Indoor data Measuring interval temperature/humidity :30 sec Indoor temperature range : 0C--50C (32 to + 122) (show --- if outside range) Resolution :0.1C Measuring range rel. humidity :10%99% Resolution :1% Alarm duration :120 sec Power consumption Base station : 3XAA 1.5V batteries (not included) Remote sensor :2xAA 1.5V batteries (not included)