EC-A1 4-20mA RS485 Output Ultrasonic Wind Speed Direction Sensor Anemometer for Weather Station 0~70 M/S
I.Product Overview
The EC-A1 Ultrasonic Wind Speed and Direction Sensor is an upgraded version of conventional mechanical wind speed and direction sensors. Based on advanced ultrasonic wind measurement technology, it features an integrated structural design with high integration and a compact size. It requires no on-site calibration or maintenance and is suitable for various harsh environments such as terrestrial and marine areas.
In addition, its excellent anti-interference capability and corrosion resistance make it a truly worry-free device after installation. With flexible design, the ultrasonic wind speed and direction sensor can output multiple signal types including digital and analog signals, meeting diverse user requirements. It is widely used in various gradient wind environment monitoring systems.
II.Working Principle
The working principle of the EC-A1 Ultrasonic Wind Speed and Direction Sensor is to measure wind speed by using the ultrasonic time-difference method. The propagation speed of sound in air is superimposed with the air flow velocity in the wind direction. If the ultrasonic wave propagates in the same direction as the wind, its speed will increase; otherwise, its speed will decrease. Therefore, under fixed detection conditions, the propagation speed of ultrasonic waves in air corresponds to the wind speed function. Accurate wind speed and direction values can be obtained through calculation.
III.Product Features
●No starting wind speed limit
●All-weather operation, unaffected by rainstorms, snow, sleet and frost
●High measurement accuracy, wide measuring range, stable performance and low power consumption
●Robust structure with strong corrosion resistance
●Compact size and lightweight, easy to install and disassemble
●Multiple signal outputs (analog or digital) available to meet diverse user integration requirements
●Excellent anti-interference capability
●All products are calibrated via professional large-scale annular wind tunnel tests before delivery, ensuring accurate and reliable data
●The housing is made of imported GE PC/ABS material, featuring anti-aging, corrosion resistance and non-discoloration for long-term outdoor use
IV.Technical Specifications
Parameter Category |
Specifications |
Wind Speed Parameters |
Measuring Range: 0~70 m/sNo starting wind speedResponse Time: 1 sResolution: 0.1 m/sAccuracy: ±(0.3 + 0.03V) m/s |
Wind Direction Parameters |
Measuring Range: 0~359°No starting wind speedAccuracy: ±3°Resolution: 1° |
Heating Parameters (Optional) |
Power Consumption: 100 WTemperature Control Range: -30~60℃ |
Optional Power Supply |
DC12V / DC24V |
Output Signals |
RS485, RS232, 4~20mA, Frequency Output, etc. |
Baud Rate |
2400~19200 bps (configurable), Default: 9600 bps at factory shipment |
Communication Protocol |
Standard Modbus Protocol |
Power Supply Voltage |
DC12V / DC24V |
Operating Temperature |
-40~80℃ |
Operating Humidity |
0~100% RH |
Protection Grade |
IP66 |
Function Expansion |
Customization Supported |
Appearance |
Dimensions (Dia. × H): φ140 × 230 mmWeight: 0.6 Kg |
V.Project Cases
For more information, please contact me.
Jinzhou Sunshine Meteorological Technology Co., Ltd
Sales Manager : Ms. Zhang
Email: Jzyg322@gmail.com
Whatsapp:+86 15841668971
Wechat: 15841668971
Address: No. 15 Donghai Avenue,Jinzhou,Liaoning,China
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