1 set of Spare part (outdoor unit) for Professional Wireless Weather StationDescription: This listing includes: 1 set of spare part (outdoor unit) for Professional Weather Station. Includes the below parts: 1). Wind speed sensor (1 unit) 2). Wind direction sensor (1 unit) 3). Rain gauge sensor (1 unit) 4). thermo hygro sensor (1 unit) 5). Installation rack (1 unit) Remark: this spare part (outdoor unit) is designed for our professional weather station, we dont guarantee it is workable when you connect it to the professional