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The ¼” electret microphone RG-50HL is a free field microphone with integrated electronics designed for the IEPE 4 mA constant current supply at 24 Volt DC.

The microphone sensitivity with 1.4 mV/Pa allows noise measurements up to 170 dB peak.

The membrane is protected against mechanical
damage by a protective grid.

  • Type 1 according to IEC 651
  • for IEPE sensor supply
  • 5Hz to 20 kHz
  • up to 170 dB Peak
  • pre-polarized


  • Airbag Bang
  • Explosion analysis
  • Explosion detection
  • Shooting noise
  • Gunshot sound
  • Engine noise – Aerospace industry

Outdoor Microphone Unit

MR40 with microphone stand - option

ROGA outdoor microphones are equipped with a windscreen, a rain cover and a bird deflector to protect them from such and other weather influences.

The sound entrance at a 90º angle to the microphone axis is ideal for monitoring ambient and traffic noise.

MR40 is a 1/2-inch pre-polarized condenser outdoor microphone.
It is suitable for continuous use in rainy days or in a very high or very low temperature environment.

MR40 uses a WS2F and IEC 61672 Class 1 MP40 measurement microphone, which is characterized by its stability.

It is the best choice for long-term outdoor use, such as noise monitoring.

  • Reference direction of sound incidence 90° to the microphone axis
  • Sensitivity 50mV/Pa
  • IEPE supply 2-20mA (BNC)
  • Frequency Response: 3.5Hz – 20kHz
  • 3.5Hz-4KHz: ±0.5dB
  • 4KHz – 20KHz: ±1.5dB
  • Class 1 WS2F – DIN IEC 61094-4 
  • Acoustic noise floor 18 dB(A) 
  • Measurement range to SPL Peak (5% Dist.) 146 dB
  • Temperature range -20 to +60 °C

The First SMART Impulse Hammer

It is the tool of choice for:

  • Production
  • Modal testing
  • Acoustic resonance analysis

We guarantee a fully automatic, reproducible and highly precise excitation free of any bouncing and annoying parameter adjustments or tunings. This smart device called WaveHitMAX does these adjustments for you just automatically.

1/4" measurement microphone for
extreme high sound pressure levels
60 dBA - 186 dB

MK342 E + MV310 set

1/4" measurement microphone with
constant pressure frequency response

The static air pressure is compensated by means of a capillary to the preamplifier (back-ventilated) or by means of a side capillary (side-ventilated).

The membrane is protected against mechanical
damage by a protective grid.

  • WS3P according to IEC 61094-4
  • Print
  • 3.5Hz to 70kHz
  • 60dB(A) to 186dB
  • pre-polarized
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