• Meteorological anemometer wind speed sensor

Meteorological anemometer wind speed sensor

Short Description:

WS wind speed sensors adopts traditional three- cup structure. The cups are made from carbon fiber material, with high intensity and good start ability; and the signal processing units, built in the cups, can output the corresponding, It can be widely use in meteorology, marine, environment, airport, harbor, laboratory, industry and agriculture area.


Product Detail

Product Tags

Technique Parameter

Measurement range 0~45m/s 
Accuracy ±(0.3+0.03V)m/s (V: wind speed)
Resolution 0.1m/s
Staring wind speed ≤0.5m/s
Power supply mode DC 5V 
DC 12V 
DC 24V 
Out-put Current: 4~20mA 
Voltage: 0~2.5V 
Pulse:Pulse signal
Voltage: 0~5V    
TTL Level: (frequency; Pulse width)
Instrument Line length Standard: 2.5m
Load capacity Current mode impedance≤600Ω
Voltage mode impedance≥1KΩ
Operating environment Temperature: -40℃~50℃
Humidity: ≤100%RH    
Defend grade IP45
Cable grade Nominal voltage:300V 
Temperature grade:80℃
Produce weight 130 g
Power dissipation 50 mW

Calculation Formula

W =0; (f = 0)
W =0.3+0.0877×f(f≠ 0)
(W: indicating value of wind speed(m/s); f: pulse signal frequency)
Current mode (4~20mA):
W = (i-4)×45/16
(W: indicating value of wind speed (m/s); i: current type(4-20mA))
Voltage type(0~5V):
W =V/5×45
(W: indicating value of wind speed(m/s) ; V: voltage signal(0-5V))
Voltage type(0~2.5V):
W =V/2.5×45
(W: indicating value of wind speed(m/s); V: voltage signal (0-2.5V)

Wiring Method          

There is five-core aviation plug, whose output is at the base of the sensor. The definition of each pin’s corresponding base pin.


1. If you have equipped with our company's weather station, please attach the sensor cable to the appropriate connector on the weather station directly.

2. If you purchase the sensor separately, the order of the wires are as followed:
R(Red): power +
Y(Yellow): signal output
G(Green): power —

3. Two ways of wiring method of pulse voltage and current:

wiring method of voltage and current

wiring method of voltage and current

output of current wiring method

output of current wiring method

Structure Dimensions

Structure Dimensions
Wind speed Sensor

Base mounting dimensions

Base mounting dimensions
Dimensional drawing of base installation:
Installation aperture: 4mm
Distribution Diameter: 62.5mm
Interface Dimension: 15mm (suggest reserving 25mm for wiring)

Transmitter Size

Transmitter Size   

RS485 (with address) communication protocol 

1. Serial format
8 data bits
1 stop bit
Parity None
Baud rate 9600,Two communication interval of at least 1000ms
2. The communication format
[1] Is written to the device address
Send: 00 10 00 AA (16 hexadecimal data)
Description: 00 - broadcast address (must be 0); 10 - Write operation (fixed); 00 - Address command (fixed); AA - write the new address (only,1-255)
Returns: OK (OK return success)
[2] To read the device address
Sent: 00 03 00 (hexadecimal data)
Description: 00 - broadcast address (must be 0); 03 - Read operation (fixed); 00 - Address command (fixed)
Returns: Address = XXX (ASCII code data, such as Address = 001, Address = 123, etc.)
Description: Address - address instructions; XXX - address data, less than three integer preceded 0
[1] Which units followed with a carriage return wrap data, two-byte hexadecimal data 0x0D 0x0A;
[2] The above description ignores transition spaces and '=' character.
[3] Read real-time data
Send: AA 03 0F (16 decimal data)
Description: AA - Device address (only 1-255); 03 - read operation (fixed); 0F - data address (fixed)
Back: WS = XX.Xm/s (ASCII code data, such as WS =12.3m/s, WS = 00.5m/s)
Description: WS – Wind speed; XX.X – wind speed data, bring a decimal less than two integers, the leading zeros  m/s - units
[1] Which units followed with a carriage return wrap data, two-byte hexadecimal data 0x0D 0x0A;
[2] The above description ignores transition spaces and '=' character.

LF-0001 Wind Speed Sensor01


1. Please examine whether the package is intact or not please, and check whether the product is consistent with your selected type.
2. Be sure no power is applied before you ensure the wiring connection is errorless.
3. No alteration to factory-set components or cables.
4. Sensor is an accurate instrument. Do not separate, damage the interface of the sensor with sharp solid and corrosive liquid.
5. Please save the verification certification and Certificate of approval which may return to repair with the products.


1. If anemometer bearing is not rotating well or have a big delay. It may because the long-term use lead to foreign matters in the bearings or weather there is any remained lubricating oil. Please inject the oil from the upside of bearings or post the sensors to our company to oiling.
2. If the indicated value is 0 or out of range when use analog output. It may be cause by cable connections. Please check weather the cable connections are correct and fastness.
3. If not the above reasons, please contact with us.

Selection Table

No Power supply Output Signal Instructions
LF-0001     wind speed sensors (transmitters)
  5V-   5Vpower supply
12V-   12Vpower supply
24V-   24Vpower supply
YV-   Other power supply
  V 0-5V
V1 1-5V
V2 0-2.5V
A1 4-20mA
A2 0-20mA
W1 RS232
W2 RS485
M pulse
X other
E.g. LF-0001-5V-M: wind speed sensorstransmitters5Vpower supply, output of pulse

Appendix: Wind force (wind velocity) Scale

Scale Description Land conditions Wind speed m/s
0 Calm Calm. Smoke rises vertically. 00.2
1 Light air Smoke drift indicates wind direction, still wind vanes. 0315
2 Light breeze Wind felt on exposed skin. Leaves rustle, vanes begin to move. 1633
3 Gentle breeze Leaves and small twigs constantly moving, light flags extended. 3454
4 Moderate Dust and loose paper raised. Small branches begin to move. 5579
5 Fresh breeze Branches of a moderate size move. Small trees in leaf begin to sway. 80107
6 Strong breeze Large branches in motion. Whistling heard in overhead wires. Umbrella use becomes difficult. Empty plastic garbage cans tip over. 10813.8
7 Moderate gale Whole trees in motion. Effort needed to walk against the wind. 13917l
8 Gale Some twigs broken from trees. Cars veer on road. Progress on foot is seriously impeded. 172207
9 Strong gale Some branches break off trees, and some small trees blow over. Construction/temporary signs and barricades blow over. 208244
10 Storm Trees are broken off or uprooted, saplings bent and deformed. Poorly attached asphalt shingles and shingles in poor condition peel off roofs. 245284
11 Violent storm Widespread damage to vegetation. Many roofing surfaces are damaged; asphalt tiles that have curled up and/or fractured due to age may break away completely. 285326
12 Hurricane-force Very widespread damage to vegetation. Some windows may break; mobile homes and poorly constructed sheds and barns are damaged. Debris may be hurled about. >32.6

  • Previous:
  • Next:

  • Write your message here and send it to us

    Related products

    • Portable combustible gas leak detector

      Portable combustible gas leak detector

      Product Parameters ● Sensor Type: Catalytic sensor ● Detect gas: CH4/Natural gas/H2/ethyl alcohol ● Measure range: 0-100%lel or 0-10000ppm ● Alarm point: 25%lel or 2000ppm ,adjustable ● Accuracy: ≤5%F.S ● Alarm: Voice + vibration ● Language: Support English& Chinese menu switch ● Display: LCD digital display, Shell Material: ABS ● Working voltage: 3.7V ● Battery capacity: 2500mAh Lithium battery ●...

    • Laboratory products support custom laboratory various instruments and equipment

      Laboratory products support custom laboratory v...

      Statement We can provide a variety of laboratory instruments. You can directly contact us to provide your purchase list and I offer you. Product List Measuring cup Nourish box Sewage treatment reagent Measuring tube Resistor furnace  Chemical treatment reagent Measuring a cup Water bath pot  ...

    • Single-point Wall-mounted Gas Alarm (Chlorine)

      Single-point Wall-mounted Gas Alarm (Chlorine)

      Technical parameter ● Sensor: catalytic combustion ● Responding time: ≤40s (conventional type) ● Work pattern: continuous operation, high and low alarm point(could be set) ● Analog interface: 4-20mA signal output[option] ● Digital interface: RS485-bus interface [option] ● Display mode: Graphic LCD ● Alarming mode: Audible alarm -- above 90dB; Light alarm -- High intensity strobes ● Output control: rel...

    • LF-0020 water temperature sensor

      LF-0020 water temperature sensor

      Technique Parameter Measurement range -50~100℃ -20~50℃ Accuracy ±0.5℃ Power supply DC 2.5V  DC 5V  DC 12V  DC 24V  Other Out-put Current: 4~20mA  Voltage: 0~2.5V  Voltage: 0~5V     RS232 RS485 TTL Level: (frequency; Pulse width) Other Line length Standard: 10 meters Other   Load capacity Current output impedance≤300Ω Voltage output impedance≥1KΩ Operating ...

    • Compound single point wall mounted gas alarm

      Compound single point wall mounted gas alarm

      Product Parameters ● Sensor: Combustible gas is catalytic type, other gases are electrochemical, except special ● Responding time: EX≤15s; O2≤15s; CO≤15s; H2S≤25s ● Work pattern: continuous operation ● Display: LCD display ● Screen Resolition:128*64 ● Alarming mode: Audible & Light Light alarm -- High intensity strobes Audible alarm -- above 90dB ● Output control: relay output with two wa...

    • LF-0012 Handheld Weather Station

      LF-0012 Handheld Weather Station

      Features  ◆ 128 * 64 large-screen LCD displays temperature, humidity, wind speed, average wind speed, maximum wind speed, wind direction, and air pressure value; ◆ Large-capacity data storage, can store up to 40960 weather data (data recording interval can be set between 1 ~ 240 minutes); ◆ Universal USB communication interface for easy data download; ◆ Only need 3 AA batteries: low power consumption ...