1,STRONG MATERIAL: The wind cup is made of excellent ABS material, with high strength, small starting wind speed, and good erosion resistance 2,INTERFERENCE RESISTANT: The wind speed sensor has strong prevent lightning interference ability, small and lightweight, easy to carry and assemble 3,WIRING MODE: The wind speed monitoring sensor is compatible with two cable outlet modes, including bottom cable outlet and side cable outlet 4,WEATHER RESISTANT: Wind speed sensor anemometer possess strong pressure resistance, suitable for all kinds of harsh environment, with strong wind resistance 5,EQUIPPED WITH EXTENSION CABLE: The wind speed sensor connection extension line is 0.8m long, the interface has a sealing washer design, waterproof 1 x Wind Speed Monitoring Sensor Item Type: Wind Speed Monitoring SensorMaterial: ABSSize: Approx. 158 x 180 x 70mm or 6.22 x 7.09 x 2.76inSignal Output: 4-20mAMeasurement Range: Wind speed 0-45m or sExtension Line Length: Approx. 0.8m or 2.6ftAccuracy: ±( 0.5and 0.02V)m or s(V represent real time wind speed value)Resolution: 0.1m or sStartup Wind Speed: ≤ 0.8m or sMaximum Power Consumption: 0.48WLoad Capacity: DC12V power supply, current output impedance ≤350ΩWorking Environment: Temperature: -35℃-60℃, Humidity: ≤100 percent RH non condensingProtection Level: IP64Widely Used In: Greenhouses, environmental protection, ships, docks, aquaculture, advertising gate barriers, weather, marine, environmental, airports, ports, laboratories, industrial, agricultural and traffic environments for wind speed measurementFormula: 4-20mA: F=(I-4) or 16xAandBF: Wind speed, m or s I: Sensor output current value, mA A: Sensor range width(range upper limit minus lower limit) B: Minimum value of sensor range(lower limit of range) Wire Connection Method: Distribution Diameter: Approx. 63mm or 2.48inMounting Hole Diameter: Approx. 3.2mm or 0.13inTroubleshooting: 1. The wind blade does not rotate smoothly and has a large delay. There may be foreign objects or jamming in the bearings due to long term use. Please return the sensor to the company for processing 2. The instrument display value is incorrect. May be due to wiring problems or communication port failures that prevent obtaining correct data. Please check whether the wiring is correct and secure, whether the port is occupied, and whether the port settings are correct Weight: Approx. 272.00g or 9.59oz Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.