RS-FXJT-V05-360-EX Wind direction sensor with 0-5V Output Signal. Anemometer
 
The RS-FXJT-V05-360-EX is a type of compact, durable 360° wind direction sensor, often featuring a polycarbonate shell, high-performance bearings for accuracy, and outputting signals (like 0-5V analog or RS485 Modbus) for use in weather monitoring, agriculture (greenhouses), and environmental sensing, designed for sensitive response with low inertia. The model number breaks down to indicate features like RS485 (communication), FXJT (type/series), V05 (5V power/output), 360 (degrees), and EX (enhanced/export version). 

Key Features & Specifications:
Measurement: 0-359.9° wind direction.
Output: Analog (0-5V, etc.) or Digital (RS485 Modbus).
Power: Typically DC 5V or 10-30V, with anti-reverse protection.
Construction: Polycarbonate shell (corrosion/UV resistant), low-inertia design for quick response.
Accuracy: Uses high-performance bearings for low friction and precise readings.
Applications: Weather stations, environmental monitoring, agriculture, marine, industrial automation. 
 
How it Works:
The wind catches a vane or cups (depending on model), causing it to rotate. An internal sensor (often a potentiometer or encoder) detects this rotation, converting the physical angle into a proportional electrical signal (voltage or digital data) that represents the wind direction in degrees. 
Connection & Usage:
Analog: Connect the output wire to an analog input pin (e.g., Arduino A0), ground, and power; use code to map ADC values to degrees.
RS485: Connect A/B lines and ground; use a USB-to-485 adapter and configuration software (or code) to set address/baud rate and read data.