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Measurement Mic Class 1 Calibrated 5Hz to 100 kHz

Measurement microphones MI15, MI17, MI19, RG-50, and MI21 are 1/4″ 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.

Measurement Microphone IEPE Type

Special Offer

Best Measurement Microphone

MI19 IEPE Type

Free-field
Class 1 acc. to IEC 61672
Transducer type
Electrete pressure transducer
Diameter
1/4″
Polar pattern
Omni
Frequency range
20 Hz – 20 kHz
Sensitivity @ 1 kHz
50 mV/Pa ± 0.5 dB
Max. SPL for
1% THD at 1 kHz
130 dB Peak
Inherent noise
30 dB(A)
Output impedance
<50 Ohm
Current consumption
2-6 mA
Power supply
18 V DC to 30 V DC
Bias:
12.5 Volt
Temperature range, operation
-20°C to +80°C
Heat resistant
up to 110 °C
Diameter
7 mm ± 0.05 mm
Length
83 mm
1/4″ sleeve diameter over the entire length
Weight
19 g
Connector
BNC (fem.)

Scope of delivery:

  • MI19 IEPE Microphone

1/4″ measurement microphone

50mV/Pa

Class 1 – IEC 61672

Free field

20Hz to 20kHz

30dBA to 130dB

Price: 325 €

1/4″ measurement microphone

Infrasound to Ultrasound

Class 1 – IEC 61094-5

Free field

5 Hz to 30kHz

27dBA to 130dB

Price: 543 €

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
FairTECH
ROGA Instruments products are free from planned obsolescence, technically accessible, durable and repairable.
POM-MI1921

MI19 and MI21 microphone sleeve adapter
from 1/4″ inner diameter to 1/2″ outer diameter.
POM material to ensure galvanic isolation to prevent ground and earth loops

24 €
POM-MI17RG50

MI17 and RG-50 microphone sleeve adapter to 1/2″ outer diameter.
POM material to ensure galvanic isolation to prevent ground and ground loops

24 €
MicCAL

Microphone Calibration Fee for ROGA Instruments microphones
MI15 | MI17 | MI18 | MI19 | MI21| RG-50 | RG-50HL| 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 €
WS-RG-40

1/4″ microphone windscreen Ø 40 mm

38 €
MI19

MI19; ¼” IEPE microphone
for industrial applications
Sensitivity 50 mV/Pa
Constant current supply 2-8 mA
BNC connector
Polar pattern: omnidirectional
Class 1 frequency response in accordance with IEC 61672
20 Hz – 20 kHz
calibration sheet included Sensitivity & Frequency Response
Inherent noise 30 dBA
SPL Max 130 dB
HS Code 85181000

325 €
MI19SW

IP55 splash water resistant
¼” IEPE microphone
for industrial applications
Sensitivity 50 mV/Pa
Constant current supply 2-8 mA
BNC connector
Polar pattern: omnidirectional
Class 1 frequency response in accordance with IEC 61672
20 Hz – 20 kHz
calibration sheet included Sensitivity & Frequency Response
Inherent noise 30 dBA
SPL Max 130 dB
HS Code 85181000

455 €
RG-50HL

High SPL Microphone e.g. shooting noise
WS3F Free-field IEC 61094-5
Total length: 95 mm
Sensitivity 14 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
HS Code 85181000

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
HS Code 85181000

1480 €
MI21

MI21; ¼” IEPE 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
HS Code 85181000

588 €
MI17

MI17; 1/4″ IEPE microphone,
Sensitivity 50 mV/Pa,
constant current supply 2-8 mA
BNC connection
Class 1 frequency response in accordance with IEC 61672
20 Hz – 20 kHz
free field
including individual Calibration sheet
(sensitivity & frequency response)
Inherent Noise 30 dB (A)
HS Code 85181000

425 €
MI17SW

MI 17SW; 1/4″ IEPE microphone
Splash Water Proof IP55
Sensitivity 50 mV/Pa,
constant current supply 2-8 mA
BNC connection
Frequency response:
20 Hz – 20 kHz:
free field
Class 1 frequency response in accordance with IEC 61672
including individual Calibration sheet
(sensitivity & frequency response)
Inherent Noise 30 dB (A)
HS Code 85181000

495 €
RG-50

RG-50; 1/4″ IEPE free field microphone
Sensitivity 50 mV/Pa
constant current supply 2- 20mA
BNC connection
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)
HS Code 85181000

543 €
RG-50SW

RG-50SW; 1/4″ IEPE Free-field microphone
Sensitivity 50 mV / Pa
constant current supply 2- 20mA
BNC connection
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)
HS Code 85181000

588 €