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    3-Cup Anemometer, 0~30 m/s Wind Speed, RS 485 Output

    5 out of 5 based on 5 reviews | Write a review
    Affordable price anemometer for sale, 3-cup type. Wind speed measurement range 0~30 m/s, optional output signal pulse, 4-20mA, RS-485, 0-2V/5V/10V, power supply DC 5-24V or 12-24V, accuracy ± (0.3 + 0.03V) m/s, ingress protection IP65. Wind speed sensor measures air velocity, outputs voltage and current signals by electromagnetic induction.
    SKU: ATO-3CAM-030
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The three-cup anemometer is specifically designed to accurately and reliably measure wind velocity under the adverse environmental conditions. Output signals include pulse, current 4-20mA, RS-485, voltage 0-2V/5V/10V. The wind speed sensor has built-in digital circuit, with strong anti-RFI and EMI ability and automatic temperature compensation function. Measurement value and horizontal wind speed are linear relation.


    Model ATO-RK100-01
    Output Signal (Optional) Pulses 4-20mA RS-485 0-2V/ 0-5V/ 0-10V
    Power Supply DC 5-24V DC 12-24V DC 12-24V DC 12-24V
    Load Capacity >2kΩ <500Ω - >2kΩ
    Wind Speed Range 0~30 m/s
    Accuracy ± (0.3 + 0.03V) m/s (V is the current wind speed)
    Response Time <1s
    Starting Threshold <0.3 m/s
    Limit Wind Speed 70 m/s
    Ingress Protection IP65
    Operating Temperature -30 ~ +70℃
    Net Weight 240g
    Dimension Cup rotor: Ф 220mm, Height: 175mm
    Main Material Cup: 304 stainless steel, main body: aluminum alloy
    Finish Polyester powder electrostatic spraying (black))
    Storage Condition 10~60℃ @ 20%-90% RH


    • Shell of the 3-cup anemometer is made of high-strength aluminum alloy, wind cups are made of 304 stainless steel, and the PCB board is coated with anti-corrosion coating. Waterproof and corrosion resistant.
    • The wind speed sensor has a sealing ring inside and at the rotating position, which has good sealing performance and prevents water, salt spray and dust from entering.
    • The three-cup air velocity meter has low starting threshold, strong corrosion resistant ability, massive all-metal construction, easy Installation.

    3-Cup Anemometer Output Characteristics

    • Pulses Output

    Characteristic transfer function:

    V = 0.667*F

    (where V = wind speed (m/s), F = output frequency (Hz) )

    0~30 m/s 3-Cup Anemometer Output Pulses Characteristics

    • Current Output

    0~30 m/s 3-Cup Anemometer Output Current Characteristics

    • Voltage Output

    Characteristic transfer function:

    V = U/ (full scale voltage - zero point voltage) * 30

    (where V = wind speed (m/s), U = output voltage (V) )

    • RS-485 Output

    lf the transmission distance is over 100m, please add a 120Q terminal matching resistances on the front endand back end of bus interface respectively. See the modbus communication protocol specification.

    3-Cup Anemometer Dimension Diagram (Unit: mm)

    Dimension diagram of 3-Cup Anemometer, 0~30 m/s Wind Speed, RS 485 Output

    Tips: 4-20mA output signal conversion calculation for 3-cup anemometer.

    When the 3-cup anemometer range is 0~30 m/s and the output is 4~20mA, if the output signal is 12mA, how to calculate the current wind speed value?

    The span of this wind speed range is 30m/s, expressed by 16mA current signal,
    30 m/s ÷ 16mA = 1.875/mA, that is, a current of 1mA represents a wind speed change of 1.875m/s.

    The measured value is 12mA - 4mA = 8mA. 8mA*1.875m/s /mA = 15m/s. The current wind speed is 15m/s. The calculation formula is:

    Wind speed = 1.875*current - 7.5, current value unit is mA.

    Existing reviews of 3-Cup Anemometer, 0~30 m/s Wind Speed, RS 485 Output
    how many times we need to calibrate the 3-cup anemometer?
    I received this 3-cup anemometer, The anemometer is very high up and we cannot get the serial number from the unit. I am hoping you can give us how many times we need to calibrate the 3-cup anemometer.
    From: Jisoo | Date: 05/03/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    1. Serial number: R22122348
    2. Generally, no calibration is required, ATO-RK100-01 has been calibrated before leaving the factory.
    Great cost effective anemometer
    I like to fly the drone. Wind direction and speed are the most important influencing factors. This compact anemometer can help me do it all very well. Recommend it to everyone.
    From: Dick | Date: 30/05/2022
    Was this review helpful? Yes No (0/0)
    Portable 3-cup anemometer
    Fast shopping and packaging are superior. This is a portable and economical method when you need to know the actual wind speed in order to operate the equipment outdoors safely. Anyone who uses an aerial lift or crane should have a 3-cup anemometer.
    From: Stemmler | Date: 29/05/2022
    Was this review helpful? Yes No (0/0)
    Great anemometer for great price
    This little and exquisite 3-cup anemometer is really easy to use! I use it to set up vents to heat the whole house evenly. It works well without any problems.
    From: Sherwin | Date: 28/05/2022
    Was this review helpful? Yes No (0/0)
    Good quality anemometer
    This 3-cup anemometer works as described, arrived on time and the service is soooo good! I bought this anemometer to measure wind speed at work. It seems to be pretty accurate and easy to use.
    From: Zxenith | Date: 24/05/2022
    Was this review helpful? Yes No (0/0)
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