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    Picture of Industrial Noise Sensor Module, TTL/RS485/IIC Picture of Industrial Noise Sensor Module, TTL/RS485/IIC Picture of Industrial Noise Sensor Module, TTL/RS485/IIC

    Industrial Noise Sensor Module, TTL/RS485/IIC

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    SKU: SUCH-NS-ZSBZ
    $95.23
    ● Measuring range 30dB~130dB ● Frequency response range 20Hz~12.5kHz ● Operating voltage range (5V or 12V selectable) ● Operating temperature -20℃~+60℃
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    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    Industrial-grade high-precision noise sensor module supports 5V or 12V operating voltage, offers a rich array of interfaces (TTL, RS485, IIC, 0-3V analog output), a measurement range of 30~130dB, and an accuracy of ±0.5dB. SUCH noise sensor module operates stably in non-condensing environments ranging from -20℃ to 60℃ and 0-90%RH. With built-in 94dB and 114dB calibration points, it supports a 500ms fast response and a 1.5s slow response mode, combining high precision with flexibility, making it suitable for various industrial noise monitoring scenarios.

    Feature

    • PCB board mounting for easy integration into various systems.
    • Supports a wide measurement range of 30-130dB and a wide frequency response of 20Hz–12.5kHz.
    • Utilizes a high-performance pre-polarized back-electrode condenser microphone, providing wide dynamic range and stable performance.
    • Features fast and slow measurement modes to meet diverse application needs.
    • It supports dual power input options of 4.5～5.5VDC or 10～28VDC, offering flexibility in use.

    Dimension (Unit: mm)

    Noise sensor module size

    Installation Notes

    Noise sensor module installation note

    Specs
    Working Voltage 4.5~5.5V (5V) (default)
    10~28V (12V) (optional)
    Power Consumption 18.9mA@5V
    31.0mA@12V
    27.8mA@24V
    Output Signal UART（TTL） Output voltage: 0~3.3V/ Input voltage: 0~3.3V Compatible 5V
    RS-485 ModBus-RTU communication protocol
    Analog output Output voltage: 0~3V corresponding to 30~130dB
    UART or RS-485 Communication Parameters 9600  N  8  1
    Measuring Range 30dB~130dB
    Frequency Weighting A-weighting
    Frequency Response Range 20Hz~12.5kHz
    Transmitter Circuit Operating Temperature -20℃~+60℃，0%RH~90%RH (no condensation)
    Response Time Fast mode 500ms
    Slow mode 1.5s
    Stability Less than 2% of cycle time
    Reference Calibration Point 94dB and 114dB calibration, reference sound pressure 20uPa, frequency 1kHz
    Noise Accuracy ±0.5dB (at reference pitch, 94dB@1kHz)
    Dust Cover Impact Effect ≤0.5dB in the range of 50~115dB
    Influence ≤0.7dB in other ranges within the measurement range
    Working Environment Air temperature: -20~+60℃
    Static pressure: 65kPa~106kPa
    No strong mechanical vibration, impact, strong electromagnetic field and corrosive gas in the surrounding area.
    Adjustment Data for Sound Pressure Response and Free Field Response The equivalent free-field response can be obtained by adjusting the data in the following table through the sound pressure response generated by an acoustic calibrator or the simulated sound pressure response generated by an electrostatic exciter.Noise sensor module adjustment data
    Module Directivity at 1kHz, 2kHz, 4kHz, 8kHz Modular directivity diagram
    Electret Parameters
    Free-field sensitivity Approx. 8mV/Pa (free-field sensitivity level of -42dB, using 1V as reference)
    Electret Head Capacitance Approx. 15pF
    Typical Frequency Response Noise sensor typical response diagram
    Application
    Construction noise

    Construction Noise

    Traffic noise

    Traffic Noise

    Residential noise

    Residential Noise

    FAQ
    ❯

    The sensor detects changes in sound pressure in the environment through a built-in high-precision microphone and measures the noise level using specific frequency weighting (such as A-weighting or C-weighting). The signal is then converted into an electrical signal for display or recording.

    ❯

    Commonly used for noise monitoring in industrial locations such as factories, workshops, and equipment rooms for safety management, environmental monitoring, and noise exceeding warnings.

    ❯

    Weighting is a method of correcting the volume of noise at different frequencies. A-weighting is closer to the characteristics of human hearing, while C-weighting is used for measurements in high-noise environments.

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