Skip to content

MI17 Microphone for IEPE Power Supply

The MI17 ICP measurement microphone provides a cost-effective solution for acoustic measurements.It can be used in combination with any instrument that has an ICP® or constant current power supply. The frequency response corresponds to class 1 specification  IEC 61094-3 


IEPE Microphone

Ideal Applications include the measurement of:

  • Product noise
  • Environmental noise
  • Acoustic modes
  • Sound power

Recommended Accessory:

CA114 Calibrator
• Accuracy: Meets Class1 requirements
• Cal.Level: 94dB & 114dB @ 1kHz

Free field Class 1

  • Mic.Type: Electret prepolarised
  • WS3F according to IEC 61094-3
  • Mic.Size: 1/4″
  • Response: Free-field
  • Frequency response:
  • 20 Hz – 4 kHz: ± 0.5 dB
  • 4 kHz – 20 kHz: ± 1.5 dB
  • Polar pattern: omnidirectional
  • Sensitivity 50 mV/Pa
  • Measuring range 26 dB (A) to 130 dB SPL peak (5% dist.)
  • Constant current supply 2 – 6 mA
  • Bias: 12.5 Volt
  • Temperature range -10 to +80 °C
  • Heat resistant up to 110 °C
  • Dimension: ø12 x 93 mm
  • Connector: BNC female (male, TNC or female on request)
  • WS-RG-40 Windscreen 40 mm diameter

Identical MI17 models

  • AVM MI 17
  • FALM MF172
  • STAC MC20
  • MC230

MI17 & MI17SW Dimensions

RG-50 & MI17 Technical Drawing

MI17SW Splash Proof IP55

  • The MI17SW microphone is designed with splash water protection so that it can be used for measurement campaigns in wet or humid weather.

  • A water-repellent sealing of the membrane at the sound inlet, prevents the damage of the electret capsule by water.

  • The IEPE microphones with splash water protection, also MI21 and RG-50SW, have proven themselves, among others, at brake manufacturers, who mount the microphone in the wheel housing to record disturbing brake noises.

Frequency response linearity within class 1 specification

ICP® is a registered trademark of PCB Piezotronics Inc.

Click here to go to our German page