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    Noise Sensor, RS485, 4-20mA, 0-5V

    Utilizing 485 communication with ModBus-RTU protocol, RS485, 4-20mA, 0-5V noise sensor operates within a wide DC Power Supply range of 10-30VDC, consuming only 0.1W of power. The Baud rate can be set to 2400, 4800 (default), or 9600, with 8 data bits, no parity check, and 1 stop bit. Boasting a swift response time of ≤3s and stability of less than 2% throughout its service life, accuracy is within ±0.5dB at the reference pitch of 94dB@1kHz.
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    Operating on 10-30VDC with minimal 0.1W power consumption, it features a versatile 485 communication interface (ModBus-RTU protocol). Noise sensor, RS485, 4-20mA, 0-5V offers a resolution of 0.1dB, measuring noise from 30dB to 130dB across a frequency range of 20Hz to 12.5kHz.


    Noise sensor, RS485, 4-20mA, 0-5V feature

    1. High-quality materials for the pursuit of quality, durable, high-density metal casing, waterproof and anti-corrosion, no fear of condensation.
    2. Wide measuring range with high sensitivity condenser microphone.
    3. Industrial digital detector technology: the use of digital signal processing chip, good linearity, wide dynamic range.
    4. High-precision noise sensor picks up a wide range of frequencies and stable signals.


    Model ATO-RS-ZS-N01-FL
    DC Power Supply 10-30VDC
    Power 0.1W
    Transmitter Circuit Operating Temperature Transmitter circuit operating temperature
    Communication Interface       485 communication (ModBus-RTU protocol)
    Baud rate: 2400, 4800 (default), 9600
    Data bit length: 8 bits
    Parity check method: none
    Stop bit length: 1 bit
    Default ModBus communication address: 1
    Support function code: 03
    Parameter Settings Use the provided configuration software to configure through the 485 interface
    Resolution 0.1dB
    Measuring Range 30dB~130dB
    Frequency Range 20Hz~12.5kHz
    Response Time ≤3s
    Stability Less than 2% during the service life
    Noise Accuracy ±0.5dB (at reference pitch, 94dB@1kHz)

    Dimension (Unit:mm)

    Noise sensor RS485 4-20ma 0-5v dimension


    Noise sensor RS485 4-20ma 0-5v application

    Tips: Why is monitoring noise important?

    • Health Impact: Prolonged exposure to high levels of noise can have adverse effects on human health, including stress, hearing loss, and sleep disturbances. Monitoring noise helps identify areas with elevated noise levels and implement measures to protect public health.
    • Environmental Impact: Excessive noise can negatively impact the environment, affecting wildlife, ecosystems, and the quality of outdoor spaces. Noise monitoring allows for the identification of areas where noise pollution is a concern, enabling the implementation of mitigation strategies.
    • Community Quality of Life: Noise pollution can significantly affect the quality of life in residential areas. Monitoring noise levels helps communities identify sources of noise, advocate for noise reduction measures, and maintain a peaceful living environment.


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