CRY3285 Free-field Microphone, 1/2″，External-polarized, 50mV/Pa
CRY3285 is a 1/2-inch free-field externally polarized measurement microphone widely used in acoustic testing environments, such as anechoic chambers and quiet rooms.
The CRY3285’s innovative design offers a frequency response range that closely aligns with the human ear’s auditory range, making it highly effective for noise detection. Its versatility extends across electroacoustic measurements, audio testing, and acoustical research, ensuring broad applicability in various fields.
High-sensitivity free-field microphone
Extensive compatibility
Durable, reliable, and high-quality
CRY3285 Measurement Microphone Typical Frequency Response
The graph (right) shows the frequency response curves for 0° incidence in a free-field environment and the frequency response curves obtained using the electrostatic excitation method.
Technical Specifications
Technical specification
Field Type
Free-field
Noominal Sensitivity
50mV/Pa, -26±1.5dB re 1V/Pa
Frequency Response
3.15Hz to 20kHz±2dB
Polarization Voltage
200V
Dynamic Range(re.20uPa)
16dBA to 146dB
Operating Temperature
-30 to +80℃ (-22 to +176℉)
Temperature Stability
0.010dB/℃(-10 to +50℃) 0.006dB/℉(+14 to +122℉)
Static Pressure Stability
-0.01dB/kPa
Operating Humidity Range
0 to 90%RH no condensation
Humidity Stability
< 0.1dB (0 to 90%RH no condensation)
Pressure Equalization Vent
Rear vented
IEC 61094-4 Type
WS2F
Height with Grid
16.2mm (0.64″)
Diameter with Grid
13.2mm (0.52″)
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Measure Sound Better
At CRYSOUND, we blend precision with passion. With over 25 years of experience in delivering high-quality acoustic measurement products, we are dedicated to providing advanced solutions that empower users to be the champions of audio test and detection solutions.