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    3-Cup Anemometer, 0~45 m/s Wind Speed, RS 485 Output

    5 out of 5 based on 2 reviews | Write a review
    Buy 3-cup anemometer at economical price from ATO. Wind speed measurement range 0~45 m/s, limit velocity 50 m/s, output signal pulse/current 4-20mA/RS-485/voltage 0-5V for selection, supply voltage DC 5-24V or 12-24V. Wind speed sensor for measurement of air velocity, suitable for weather station and industrial/agriculture applications.
    SKU: ATO-3CAM-045
    30-day Returns
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    Delivery date: 6-12 days

    Three-cup anemometer for sale, measures 0-45 m/s wind speed, outputs pulse/current 4-20mA/RS-485/voltage 0-5V. The wind speed sensor is specifically designed to accurately and reliably measure air velocity under the adverse environmental conditions. The wind gauge outputs voltage and current signals by electromagnetic induction, the value and horizontal wind speed are linear relation.


    Model ATO-RK100-02
    Output Signal (Optional) Pulses (PNP) 4-20mA 0-5V RS-485
    Power Supply (Optional) DC 5V, 12-24V
    Load Capacity >1kΩ, default high level: 5V <500Ω (typ 250Ω) >1kΩ -
    Wind Speed Range 0~45 m/s
    Accuracy ± (0.3 + 0.03V) m/s (V is the current wind speed)
    Starting Threshold <0.5 m/s
    Limit Wind Speed 50 m/s
    Ingress Protection IP65
    Operating Temperature -40 ~ +50℃
    Cable Grade Nominal voltage: 300V, Temperature grade: 80℃
    Net Weight 170g
    Dimension Cup rotor: Ф 179mm, Height: 160mm
    Main Material Carbon Fiber
    Finish Polyester powder electrostatic spraying (black))
    Storage Condition 10~50℃ @ 20%-90% RH


    • The 3-cup anemometer is a sensitive wind speed sensor designed to measure air velocity and wind run.
    • Wind cups are made of carbon fiber material, with high intensity and low starting threshold.
    • The signal processing units are built in the housing shell. It can be widely used in meteorology, marine, environmental monitoring, weather station, airport, harbor, laboratory, industrial and agricultural areas.

    3-Cup Anemometer Output Characteristics

    • Pulses Output

    Characteristic transfer function:

    F = 0, V = 0

    F ≠ 0, V = 0.1 + 0.0875 × F

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

    Pulses output diagram of 0-45 m/s 3-Cup Anemometer

    • Current Output

    Current output diagram of 0-45 m/s 3-Cup Anemometer

    • Voltage Output

    Voltage output diagram of 0-45 m/s 3-Cup Anemometer

    • 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, 0~45 m/s Wind Speed, RS 485 Output

    Tips: 0-5V output signal conversion calculation for 0-45m/s anemometer.

    For example, 3-cup anemometer wind range is 0~45m/s, 0-5V output. When the output signal is 2V, calculate the current wind speed value.

    The span of this wind speed range is 45m/s, expressed by a 5V voltage signal,
    45m/s ÷ 5V = 9m/s /V, that is, a voltage of 1V represents a wind speed change of 9m/s.

    The measured value is 2V - 0V = 2V * 9m/s /V = 18m/s. The current wind speed is 18m/s.

    The calculation formula is:
    Wind speed = 9*voltage, the unit of voltage value is V.

    Existing reviews of 3-Cup Anemometer, 0~45 m/s Wind Speed, RS 485 Output
    Excellent wind speed anemometer
    Good value for money anemometer. This is perfect for checking the wind speed in the vents of my house. It's easy to use, and we all love it.
    From: Trostel | Date: 30/05/2022
    Was this review helpful? Yes No (0/0)
    Very impressive unit
    For this price, this is a great wind speed meter. It is very simple to use and can be used with HVAC system. Compared with the instrument with much higher price from friends, it is worth recommending.
    From: Gladiola | Date: 28/05/2022
    Was this review helpful? Yes No (0/0)
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