Outdoor Weather station accessory anemometer wind direction meter temperature and humidity sensor rain gauge. 
 
The WH-SP-WS02 (often sold under the brand MS-WH-SP-WS02 by manufacturers like Misol and Ambient Weather) is a comprehensive outdoor multi-sensor array used in professional wireless weather stations. It measures wind speed, wind direction, rainfall, temperature, and humidity, and transmits this data to an indoor console.
 
Key Features and Specifications
Wind Sensor: Includes cup anemometers for wind speed and a wind vane for wind direction (0° to 360°).
Rain Gauge: Uses a tipping-bucket mechanism to record precipitation levels.
Thermo-Hygrometer: Houses the sensor for measuring ambient outdoor temperature and relative humidity.
Power & Frequency: Powered by batteries (often 2 × AA) and transmits data wirelessly to a base station on radio frequencies like 433MHz.
 
 
This accessory contains the following parts:
1) Wind speed sensor *1pc
2) Wind direction sensor *1pc
3) Rainfall sensor *1pc
4) Temperature and humidity sensor *1pc
5) Mounting frame *1pc
 
Resources: 
1. ESPHome Weather Station
2.