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1/4" Microphones

The IEPE microphones MI15, MI17, MI19, RG-50, and MI21 are types of free-field microphones with integrated electronics that are commonly used in scientific research.

To ensure accuracy, these microphones can be supplied with close tolerances of ±0.5dB and have transfer factors ranging from 10 mV/Pa to 100 mV/Pa.

Constant current power IEPE is the standard power source, usually set at 4mA.

Coaxial cables are used as feed lines, and the standard microphone configuration includes BNC connectors that have optional TNC variations available.

IEPE DAQ Microphone

1/4″ measurement microphone

50mV/Pa

Class 1 – IEC 61094-5

Free field

20Hz to 20kHz

30dBA to 130dB

Price: 385 €

Ultrasound Microphone

1/4″ measurement microphone

Infrasound to Ultrasound

Class 1 – IEC 61094-5

Free field

5 Hz to 30kHz

27dBA to 130dB

Price: 512 €

IEPE Microphone Free field class 1 WS3F

1/4″ measurement microphone

Splash proof

Class 1 – IEC 61094-5

Free field

20Hz to 20kHz

27dBA to 130dB

Price: 588 €

Ultrasound Microphone

MP30 set + MK 301 E 

40mV/Pa and 3.5mV/Pa

Class 1 – WS3F – IEC 61094-4

Free field

5Hz to 100kHz

18dBA to 168dB 

Price: 1715 €
Model
Description
Price
ROGA Instruments products are free from planned obsolescence, technically accessible, durable and repairable.
MicCAL

Microphone Calibration Fee for ROGA Instruments microphones
MI15 | MI17 | MI18 | MI19 | MI21| RG-50 | MP30| MP40
After successful factory calibration, the microphone is returned to
the customer with our factory calibration certificate.

155 €
MicREP

Microphone Repair Fee for ROGA Instruments microphones
MI15 | MI17 | MI18 | MI19 | MI21| RG-50
After successful repair and factory calibration, the microphone is returned to the
customer with our factory calibration certificate.

225 €
RG-50HL

High SPL Microphone e.g. shooting noise
WS3F Free-field IEC 61094-5
Total length: 95 mm
Sensitivity 10 mV/Pa
constant current Supply 2-20 mA
BNC connection
Polar pattern: omnidirectional
Frequency response:
5 Hz – 4 kHz: ± 1 dB
4 kHz – 30 kHz: ± 1.5 dB
factory calibration certificate included
measuring range up to SPL 144 dBRMS / 150 dB peak

1275 €
MK342 E
+
MV310
Set

1/4″ microphone with constant pressure frequency response
WS3P according to IEC 61094-4
Pressure
3.5Hz to 70kHz
60dB(A) to 186dB
pre-polarized

1480 €
MI21

MI21; ¼” electret condenser microphone
Splash Water Proof IP55
Sensitivity 50 mV/Pa / ± 1.0 dB
CCP IEPE supply 2-6 mA
BNC connector
Polar pattern: omnidirectional
Frequency response IEC 61094-5
20 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
corresponds to class 1
Calibration sheet included Sensitivity & Frequency Response
Inherent noise 26 dB(A)
SPL Max 130 dB

588 €
MI19

MI19; ¼” electret microphone
for industrial applications
Sensitivity 50 mV/Pa
Constant current supply 2-8 mA
BNC connector
Polar pattern: omnidirectional
Class 1 Frequency response IEC 61094-5
20 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
calibration sheet included Sensitivity & Frequency Response
Inherent noise 27 dBA
SPL Max 130 dB

385 €
MI17

MI17; 1/4″ IEPE microphone,
Sensitivity 50 mV/Pa,
constant current supply 2-8 mA
BNC connection, including WS-RG-40 windscreen.
Frequency response: Class 1 – IEC 61094-5
20 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
free field, corresponds to class 1
including individual Calibration sheet
(sensitivity & frequency response)
Inherent Noise 26 dB (A)
Download MI17 PDF

512 €
MI17SW

MI 17SW; 1/4″ IEPE microphone
Splash Water Proof IP55
Sensitivity 50 mV/Pa,
constant current supply 2-8 mA
BNC connection, including WS-RG-40 windscreen.
Frequency response:
20 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
free field, corresponds to class 1 IEC 61094-5
including individual Calibration sheet
(sensitivity & frequency response)
Inherent Noise 26 dB (A)
Download MI17 PDF

588 €
RG-50

RG-50; 1/4″ IEPE free field microphone
Sensitivity 50 mV/Pa
constant current supply 2- 20mA
BNC connection
including WS-RG-40 windscreen
Frequency response
5 Hz – 4 kHz: ± 0.5 dB
4 kHz – 30 kHz: ± 1.5 dB
free field, corresponds to class 1 IEC 61094-5
including individual Calibration
sheet (sensitivity & frequency response)
Inherent Noise 26 dB (A)
Download RG-50 PDF

512 €
RG-50SW

RG-50SW; 1/4″ IEPE Free-field microphone
Sensitivity 50 mV / Pa
constant current supply 2- 20mA
BNC connection
including WS-RG-40 windscreen
Splash Water Proof IP55
Frequency response
5 Hz – 4 kHz: ± 0.5 dB
4 kHz – 30 kHz: ± 1.5 dB
free field, corresponds to class 1 IEC 61094-5
including individual Calibration
sheet (sensitivity & frequency response)
Inherent Noise 26 dB (A)
Download RG-50 PDF

588 €