The Suite Represents The Three Core Components Of Weather Measurement: Wind Speed, Wind Direction, And Rainfall.It Uses A Sealed Magnetic Reed Switch And Magnet, So You Need To Supply Voltage To Make Any Measurements.All Sensors In The Weather Gauge Kit Are Passive Components. This Means You Need A Voltage Source To Measure Anything.Sensors Include Wind Vane, Cup Anemometer, Dumping Bucket Rain Gauge.Solar Powered Wireless Home Weather StationOutdoor Transmitter Function Description:1. Wireless 433mhz Transmission, Transmission Distance Of About 100 Meters2. Outdoor Humidity Range From 20% To 99%, Resolution:5%.3. The Outdoor Temperature Range Is -40C To +60C,And The Resolution:14. Wind Speed And Direction Transmission:Wind Speed Range From 0 To 50m/S;Wind Direction E,S,W,N,Se,Ne,Sw,Nw Eight Directions5. Rainfall Transmission:The Total Rainfall Is 9999 Mm6. Low Voltage Detection:When Low Voltage Occurs,The Receiver Symbol Flashes7. Power Supply Mode:Alkaline Rechargeable Battery 2xAa 1.5v,Solar Energy8. Waterproof Grade:IPX3Name:Professional Weather StationIndoor Temperature:0-50Outdoor Temperature:40-60Temperature Accuracy:1.0Humidity Range:20%-90%Humidity Accuracy:5%Rainfall Range:0-9999mmAir Pressure Range:750hpa-1100hpaReceiver:3xAA 1.5V LR6 Alkaline Batteries(Without Batteries,You Need To Pair The Corresponding Type Of Batteries Yourself)Transmitter:1.5V 2xAA Alkaline Batteries(Solar Transmitters Use Rechargeable Batteries)(Without Batteries,You Need To Pair The Corresponding Type Of Batteries Yourself)Battery Life:Base Station At Least 12 Months,Remote Sensor At Least 24 MonthsColour:Gray-BlackMaterial:ABSSize:18.9x12.5x2.7cmPackage Contents:1 Set * Weather Station essories1 * Temperature And Humidity MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.