Calibrated Measurement Microphone 1/4″ IEPE 5 Hz

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.

1/4″ measurement microphone

50mV/Pa

Class 1 – IEC 61094-5

Free field

20Hz to 20kHz

30dBA to 130dB

Price: 385 €

1/4″ measurement microphone

Infrasound to Ultrasound

Class 1 – IEC 61094-5

Free field

5 Hz to 30kHz

27dBA to 130dB

Price: 512 €

1/4″ measurement microphone

Splash proof

Class 1 – IEC 61094-5

Free field

20Hz to 20kHz

27dBA to 130dB

Price: 588 €

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 dB^RMS / 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 €

1/4" Microphones