Feature: 1. CHARACTERISTICS: Wind direction sensor is characterized by good linearity, high accuracy, no dead spot, no fear of lightning strike, and easy observation, more stable and reliable use. Users can know the wind direction through the sensor and make corresponding decisions and countermeasures. 2. ALL AROUND: The internal precise angle sensor is able to realize all round 360° wind direction monitoring. Users can get a full range of wind direction information, ensuring the comprehensiveness and accuracy of the data. 3. PREMIUM MATERIAL: Made of low inertia ABS material with good dynamic characteristics. The premium material made it has stable performance and long lasting reliability, and can work well in various environments. 4. FUNCTION, WORKING PRINCIPLE: It is mainly used to measure the direction of the wind, adopting the rotary type, which can accurately measure the direction of the wind. 5. WIDELY USED: It is suitable for meteorology, environmental monitoring, aerospace and other fields. Besides it can also be used for wind direction measurement applied in gardens, greenhouses, environmental protecting, weather stations, ships, wharves, aquaculture, advertisement gates, meteorology, marine, environment, airports, ports, laboratories, industry, agriculture and transportation environments. Specification: Item Type: Wind Direction Sensor Material: ABS Weight: Approx. 385g / 13.6oz Product Size: Approx. 223x190x70mm / 8.8x7.5x2.8in Supply Voltage: DC 9-30V Output: 4-20mA Extension Wire Length At Connection: 0.8m / 2.6ft Accuracy: Omni Directional: ± 3° Resolution: Omni Directional: 1° Starting Wind Speed: ≤0.8m/s Maximum Power Consumption: 0.48W Load Capacity: DC12V power supply, current type output impedance ≤ 350Ω, DC24V power supply, current type output impedance ≤ 900Ω, voltage type output impedance ≥ 1KΩ Operating Environment: Temperature -35℃-60℃ Humidity: ≤100% RH without condensation Prevention Grade: IP64 Cable Grade: Rated Voltage: 300V 80°C Mounting Hole Diameter: 3.2mm / 0.13in Aerial Plug Diameter: 15mm / 0.59in (It is recommended to reserve 25mm / 0.98in for easy wiring, wiring first, then install the fixed sensor) Calculation Formula: 4-20mA: F=(I-4)/16x359 Attention: F: Indicates the wind direction angle value, unit: °. I: Sensor output current value, mA Wiring Methods (Wire Sequence) Wire color Output signal (current) Red Power positive Black Power negative Yellow Signal Troubleshooting : 1. The wind blades do not rotate properly, and the hysteresis is big. There are foreign objects or jammed in the bearing due to long term use. Please send the sensor back to the company for processing. 2. Analog signal meter display value is not correct. Possible wiring problems or communication serial port failure caused by the inability to obtain the correct data. Please check whether the wiring is correct and firm, whether the serial port is occupied, and whether the serial port setting is correct. 3. If it is not the above reasons, please contact customer service.. Package List: 1 x Wind Direction Sensor Note: 1. Please check whether the package is intact, and check whether the product model is consistent with the selection; 2. Do not wire with electricity, check the wiring is complete before powering up;3. Sensor line length will affect the product output signal, do not change the product when using;4. Sensors are precise devices, users should not disassemble, use sharp objects or corrosive liquids to contact the sensor surface, so as not to damage the product;5. Please do not plug and unplug with electricity;6. Please install it in the south direction;