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AWA3301A Intelligent Microphone
Microphone
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AWA3301A Intelligent Microphone

IoT-enabled intelligent microphone for real-time noise monitoring and cloud-based data access 

Integrated system design combining microphone, data processing, network module, and cloud platform

High-precision measurement compliant with IEC 61672-1:2013 Class 1 standards 

Wide dynamic measurement range covering 30 dB to 126 dB (A-weighted) for environmental and workplace noise

Supports A / C / Z frequency weighting and Fast (F) / Slow (S) time weighting 

Ultra-low self-noise ensures high measurement reliability (≤ 20 dBA equivalent level)

Multiple output interfaces: Wi-Fi, Bluetooth, and USB, ensuring flexible system integration

Compatible with Class 1 sound calibrators for accurate calibration and stability assurance

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    product details
    AWA3301A Intelligent Microphone01
    01

    Product Description

    The AWA3301A is an intelligent microphone developed in tandem with advancements in IoT and cloud technologies. Comprising a measurement microphone, a data processing module, a network transmission module, and a backend platform, it is designed for long-term indoor noise measurement and monitoring—such as in workplaces and smart buildings.

    The instrument transmits measured noise data to a cloud server via Wi-Fi. By leveraging the network capabilities of devices such as smartphones, tablets, laptops, and desktop computers, users can access real-time data from the cloud server anytime and anywhere to monitor noise levels at specific locations.

    Product Video

    Features

    Intelligent IoT-based noise monitoring system integrating microphone, processing module, and cloud platform 
    Real-time data transmission to cloud server via Wi-Fi connectivity 
    Remote access through smartphones, tablets, laptops, and desktop computers
    Supports IEC 61672-1:2013 Class 1 measurement accuracy standard 
    Wide frequency response range: 10 Hz – 20 kHz 
    Multiple frequency weightings: A, C, Z weighting 
    Time weighting options: Fast (F) / Slow (S) 
    Ultra-low self-noise performance: ≤ 20 dBA equivalent noise level 
    Supports multiple output interfaces: Wi-Fi, Bluetooth, USB 
    Flexible Wi-Fi operation modes: AP mode / STA mode
    Compact and lightweight structure: 150 × 28 × 28 mm, 50 g 
    Stable performance under wide environmental conditions: 
    Temperature: -20°C to +60°C 
    Humidity: 25%–90% RH 
    Atmospheric pressure: 65–108 kPa 
    Designed for long-term indoor applications such as workplaces, smart buildings, and environmental noise monitoring
    OEM/ODM customization available. Learn more.

    Main Performance Indicators

    AWA3301A Intelligent Microphone

    Complies with standards

    IEC 61672-1:2013 Class 1

    1 kHz measurement range (referenced to 2 × 10⁻⁵ Pa)

    (Sensitivity level: -28.0 dB ± 1 dB; the following specifications are referenced to -28.0 dB)

    A-weighted sound level: 30 dB to 126 dB;

    C-weighted sound level: 40 dB to 126 dB;

    Z-weighted sound level: 45 dB to 126 dB.

     

    Linear ranges at other frequencies

    31.5 Hz: 30 dB to 86 dB (A);

    4 kHz: 31 dB to 127 dB (A);

    8 kHz: 30 dB to 125 dB (A);

    12.5 kHz: 30 dB to 121 dB (A)

    Frequency range

    10 Hz～20 kHz

    Instrument self-noise (shorted via 20 pF capacitor)

    Self-noise is less than 20 dBA, 30 dBC, 35 dBZ.

    Frequency weighting

    A, C, and Z weighting

    Time weighting

    F (Fast), S (Slow)

    Reference direction

    The axial direction of the measurement microphone.

    Hardware Interface

    USB

    Data output

    Wi-Fi, Bluetooth, USB

    Wi-Fi transmission range

    10 meters (range may be reduced depending on ambient signal interference).

    Wi-Fi modes

    AP mode, STA mode.

    Calibration

    Use a Class 1 or higher sound calibrator

    Size（l×b×h）

    150×28×28（mm）

    Weight

    50g

    Operating conditions

    Temperature: -20°C to +60°C, humidity: 25% to 90%, air pressure: 65 kPa to 108 kPa.

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