CRY3212 is a 1/2-inch pressure field prepolarized measurement microphone

CRY3212 Pressure-field Microphone, 1/2", Prepolarized, 37.5 mV/Pa

Name: CRY3212 Pressure-field Microphone, 1/2", Prepolarized, 37.5 mV/Pa
Availability: InStock

CRY3212 is a 1/2-inch pressure field prepolarized measurement microphone, widely used in noise testing.The microphones in outdoor noise monitoring stations are usually installed upright. However, in common noise monitoring scenarios, sounds usually propagate horizontally and form a 90-degree angle with the microphones. The high frequencies of ordinary free-field microphones are difficult to meet the requirements of metrological regulations. To address this issue, the CRY3212 microphone has optimized its frequency response to meet the relevant specification requirements.
CRY3212 can also be used for relevant electroacoustic tests in conjunction with couplers, providing users with excellent test performance and flexibility.

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Product Highlights

CRY3212 Measurement Microphone Typical Frequency Response

The graph (right) shows the frequency response curves obtained using the electrostatic excitation method.

Technical Specifications

Field Type

Pressure-field

Sensitivity

37.5 mV/Pa, -28.5 dB±2 dB re 1V/Pa

Frequency Response

3.15 Hz to 16 kHz ±2 dB; 3.15 Hz to 20kHz +2~-5 dB

Polarization Voltage

0 V

Dynamic Range(re.20μPa)

18 dB to 148 dB

Operating Temperature

-30°C to +60°C(-22℉ to +140℉)

Temperature Stability

0.012 dB/℃ (-10℃ to +50℃) ; 0.007 dB/℉ (+14℉ to +122℉)

Static Pressure Stability

-0.01 dB/kPa

Operating Humidity Range

0 to 90%RH no condensation

Humidity Stability

< 0.1 dB (0 to 90%RH no condensation)

Pressure Equalization Vent

Rear vented

IEC 61094-4 Type

WS2P

Height with Grid

16.2 mm (0.64")

Diameter with Grid

13.2 mm (0.520")

Main Features

Microphone Sound Fields: Free, Pressure & Diffuse Guide

2025.12.31

In acoustic measurements (SPL, frequency response, noise, reverberation, etc.), large errors often come not from instrument accuracy, but from a mismatch between the assumed sound field and the actual one. What a microphone reads as sound pressure is not strictly equivalent across different fields-especially at mid and high frequencies, where the microphone dimensions become comparable [...]

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How a 10-Year Warranty Lowers Measurement Microphone Costs

2026.03.11

As the core component of measurement chains, the long-term stability of measuring microphones directly impacts the comparability and traceability of measurement data. The 10-year limited warranty (hereinafter referred to as the 10-year warranty) is not merely a service commitment, but a comprehensive capability demonstrated through manufacturing consistency control, reliability verification systems, and traceable evidence chains. [...]

Prepolarized vs. Externally Polarized Microphones

2026.01.19

In acoustic testing, acoustic metrology, and product noise evaluation, the term measurement microphone typically refers to a condenser measurement microphone. Its signal generation relies on a polarization electric field: sound pressure changes the capacitance, and the front-end circuitry converts this change into an electrical signal. Depending on how the polarization field is provided, measurement microphones generally [...]

Sound Calibrator Explains Measurement Microphone Calibration

2025.12.12

In day-to-day acoustic measurements, it's common to hear: "Insert the measurement microphone into the calibrator, press the button, and the microphone is calibrated." From an engineering and metrology perspective, that wording is an oversimplification. To place a sound calibrator correctly in the measurement chain, we should start with what it generates-and what it can (and [...]

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If you are interested or have questions about our products, book a demo and we will be glad to show how it works, which solutions it can take part of and discuss how it might fit your needs and organization.

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