Svantek UK

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.

Microtech Gefell


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The 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 typeElectret pressure receiver
Frequency range20 Hz to 20 kHz class 1 free field
Phase rotation180 °
Idle transmission coefficient25 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 levelfor 3% harmonic distortion at 1 kHz108 dB (max.SPL for THD ≤ 3% at 1 kHz, UB = 1.8 V DC, RV = 2.5 kOhm)
Equivalent noise level DIN EN 6065128 dB A
Operating current0.25 mA DC
No-load supply voltage1.5 V DC to 12 V DC
Working temperature range-20 ° C to +70 ° C
ConnectorsMALCO Microdot 10 – 32 UNF – 2 A
diameterØ 7 mm
length54 mm


It has been a busy week at AcSoft HQ! The team have been working on building Renew kits with sound and vibration. These are ready to be delivered directly to the customer by our support team. More information about our Renew products: