

The AWA14521 measuring microphone is a 1/2-inch high SPL wideband free-field measuring microphone that meets the needs of conventional sound signal measurement. The AWA14521 diaphragm is laser-welded, exhibiting good stability and environmental adaptability. Its performance meets the Class 1 engineering measuring microphone requirements of SJ/T 10724 and can be used with IEPE or conventional preamplifiers. The assembly and debugging of the AWA144XX series measuring microphones are performed in a cleanroom, featuring low background noise, high stability, and a wide frequency response range. It can be used with multi-channel analyzers, noise analyzers, electroacoustic testers, and other instruments for noise measurement and analysis, and can also replace measuring microphones from other domestic and international brands.
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AWA14521 1/2" High Dynamic Range Measuring Microphone |
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Field Type |
Free Field |
Operating Temperature (°C) |
-30~+80 |
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Diameter |
1/2 inches |
Temperature coefficient (dB/℃) (@250 Hz) |
-0.01 |
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IEC 61094 |
WS2F |
Static pressure coefficient (dB/kPa) |
-0.01 |
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Polarization Voltage (V) |
0 |
Operating humidity range (%RH) |
0~100 |
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Sensitivity (mV/Pa) (@250 Hz ± 2.0 dB) |
4.2 |
Height (including protective cover) (mm) |
13.3 |
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Frequency range (Hz) |
3.15~31.5k |
Diameter (including protective cover) (mm) |
13.2 |
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Capacitance (pF) (@250 Hz) |
12(@250 Hz) |
Height (excluding protective cover) (mm) |
12.6 |
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Dynamic Range |
34 dBA~160 dB |
Diameter (excluding protective cover) (mm) |
12.7 |


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