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AWA3301B Intelligent Microphone
Microphone
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AWA3301B Intelligent Microphone

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

Supports Wi-Fi cloud transmission, enabling remote monitoring via smartphones, tablets, laptops, and PCs

Complies with IEC 61672-1:2013 Class 2 acoustic measurement standard

Wide measurement range up to 40–145 dB (A-weighted) for high-noise environments

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

Wide frequency response range: 20 Hz – 12.5 kHz for general environmental noise monitoring

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

Dual Wi-Fi modes (AP / STA) for easy deployment in different network environments

Compatible with Class 2 or higher sound calibrators for reliable calibration

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    product details
    AWA3301B Intelligent Microphone
    01

    Product Description

    The AWA3301B intelligent microphone is a smart device developed in tandem with the advancement of IoT and cloud technologies. It primarily consists of a measurement microphone, a data processing module, a network transmission module, and a backend platform; it is suitable for long-term indoor noise measurement and monitoring applications, such as workplace noise assessment and smart building noise monitoring.
    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 check noise levels at monitoring points.

    Product Video

    Features

    Smart IoT-based noise monitoring system for continuous indoor applications 
    Real-time data upload to cloud server via Wi-Fi connectivity 
    Remote access and monitoring through multiple devices (mobile, tablet, PC) 
    Frequency response range: 20 Hz – 12.5 kHz 
    Multiple weighting options: A, C, Z weighting 
    Time weighting modes: Fast (F) / Slow (S) 
    Low self-noise performance ensuring stable measurement results 
    Supports USB / Bluetooth / Wi-Fi data output 
    Flexible Wi-Fi operation modes: AP mode and STA mode 
    Compact industrial design: 150 × 28 × 28 mm, 50 g weight 

    Main Performance Indicators

    AWA3301B Intelligent Microphone

    Complies with standards

    IEC 61672-1:2013 Class 2

    Measurement range (sensitivity level: -43.0 dB ±3 dB; the following specifications are referenced to -43.0 dB, with a reference pressure of 2×10⁻⁵ Pa)

    Linearity range at 1 kHz: 40 dB–145 dB (A), 45 dB–145 dB (C), 50 dB–145 dB (Z)

     

    Linearity range at other frequencies

     31.5 Hz: 40 dB–105 dB (A); 4 kHz: 40 dB–146 dB (A); 8 kHz: 40 dB–144 dB (A)

    Frequency range

    20 Hz～12.5 kHz

    Instrument self-noise (shorted via 20 pF capacitor)

    Less than 30 dB (A-weighted), 35 dB (C-weighted), and 40 dB (Z-weighted).

    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 2 or higher sound calibrator

    Size（l×b×h）

    150×28×28（mm）

    Weight

    50g

    Operating conditions

    Temperature: 0 ℃～+40 ℃, humidity: 25% to 90%, air pressure: 65 kPa to 108 kPa.

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