Measurement Microphone M 372
The 1/4 ”electret measurement microphone M 372 is a sensor that can be connected directly to the analogue audio inputs of computers or mobile devices.
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Request a QuoteContact usThe class 1 frequency response according to IEC 61672, the extremely high sensitivity of 25 mV / Pa in this category and the 7 mm standard diameter are considered special advantages and are comparable to conventional measurement microphones. The electret capsule and preamplifier circuit form an inseparable unit in a cylindrical metal housing. The electrical connection of the measurement microphone is made via a Microdot connector and a corresponding adapter cable on a two- or four-pole 3.5mm jack plug.
The measurement microphone can be calibrated with the Pistonfon 5002 and common sound pressure calibrators using a 1/4 “adapter.
The conical shape of the microphone holder MH 64 for a diameter of 7 mm and the windshield W 3 are recommended as optional accessories.
| Converter type | Electret pressure receiver | |
| Characteristic | Bullet | |
| Frequency range | 20 Hz to 20 kHz class 1 free field | |
| Phase rotation | 180 ° | |
| Idle transmission coefficient | 25 mV / Pa (f = 1 kHz, UB = 5 V DC, RV = 4.7 kOhm) | |
| No-load transfer rate | -32 dB ± 3.0 dB re 1V / Pa | |
| Limit sound pressure level | for 3% harmonic distortion at 1 kHz | 108 dB (max.SPL for THD ≤ 3% at 1 kHz, UB = 1.8 V DC, RV = 2.5 kOhm) |
| Equivalent noise level DIN EN 60651 | 28 dB A | |
| Operating current | 0.25 mA DC | |
| No-load supply voltage | 1.5 V DC to 12 V DC | |
| Working temperature range | -20 ° C to +70 ° C | |
| Connectors | MALCO Microdot 10 – 32 UNF – 2 A | |
| diameter | Ø 7 mm | |
| length | 54 mm | |
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