Description
Product Video
Features
Performance
Test Conditions: Temperature 23 ℃, Relative Humidity 50 %RH
Dimensions
Microphone
From Sound Level Meters and Acoustic Imagers to Calibrators and sound level sensor for professional testing and research.
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AWA14421 High-Sensitivity Free-Field Measuring Microphone
High-sensitivity general-purpose design: Optimized for precise free-field acoustic measurements in conventional noise, electroacoustic, and audio testing applications.
IEC 61094-4 WS2F compliant structure: Ensures standardized performance for reliable and traceable acoustic measurement results.
Stable laser-welded diaphragm design: Provides excellent long-term stability and strong environmental adaptability for consistent measurement accuracy.
Wide application coverage: Suitable for environmental noise monitoring, building acoustics, equipment noise analysis, and acoustic research applications.
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Class 1SLM -
Mobile App -
IEC61672
01
Product Description
The AWA14421 measuring microphone is a high-sensitivity general-purpose measuring microphone specifically designed for high-precision free-field measurements, meeting the needs of conventional acoustic signal measurements. The AWA14421 microphone diaphragm is laser-welded, exhibiting good stability and environmental adaptability. Its structure conforms to the IEC 61094-4 WS2F standard requirements and is widely used in noise measurement, electroacoustic measurement, audio measurement, and acoustic research.
Product Video
Features
Frequency range of 3.15 Hz to 12.5 kHz, covering standard acoustic and audio measurement bands
Sensitivity of 31.6 mV/Pa (@250 Hz ± 2.0 dB) for high-precision signal capture in general-purpose applications
Wide dynamic range from 21 dBA to 148 dB, accommodating both low-level environmental sounds and high-intensity acoustic signals
Low noise floor of ≤21 dBA for clear detection of subtle acoustic details
Prepolarized design (0 V polarization voltage), removing the need for an external polarization power supply
Free-field type structure conforming to the IEC 61094-4 WS2F standard for standardized, traceable measurement performance
Compact microphone body (13.2 mm diameter with grid / 12.7 mm without grid; 17.5 mm height with grid / 16.6 mm without grid)
Low temperature coefficient of -0.01 dB/°C (@250 Hz, -10°C to 50°C) for consistent measurement accuracy across temperature changes
Broad environmental adaptability: operates across -30°C to +80°C and 0–100% RH
Versatile applicability for noise measurement, electroacoustic measurement, audio measurement, environmental noise monitoring, building acoustics, equipment noise analysis, and acoustic research
OEM/ODM customization available. Learn more.
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AWA14421 Measuring Microphone |
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Field Type |
Free Field |
Lower limit frequency (-3dB) (Hz) |
3.15 |
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Diameter |
1.2 inches |
Operating Temperature (°C) |
-30～+80 |
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IEC 61094 |
WS2F |
Temperature coefficient (dB/℃) (@250 Hz) |
-0.01（-10 ℃～50 ℃） |
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Polarization Voltage (V) |
0 |
Static pressure coefficient (dB/kPa) |
-0.01 |
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Sensitivity (mV/Pa) (@250 Hz ± 2.0 dB) |
31.6 |
Operating humidity range (%RH) |
0～100 |
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Frequency range (Hz) |
3.15～12.5k |
Height with grid (mm) |
17.5 |
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Capacitance (pF) (@250 Hz) |
17 |
Diameter with grid (mm) |
13.2 |
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Dynamic Range |
21 dBA～148 dB |
Height without grid (mm) |
16.6 |
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Noise floor (dBA) |
≤21 |
Diameter without grid (mm) |
12.7 |
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Voltage Equalization Method |
Post-Equalization |
Preamplifier Fitting Thread |
11.7 mm-60 UNS |
Frequency Response
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