TYPE 4952

Outdoor microphone

Designed for long periods of unattended outdoor noise monitoring, complaint investigation. Also suitable for IEC61672 Class 1 compliant outdoor sound measurement.

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Outdoor Microphones Types 4952 and 4952-A are suitable for long periods of unattended outdoor use. 

USE SCENARIOS

  • Unattended outdoor installations
  • Measurements in all weather conditions
  • Microphone for noise monitoring systems
  • IEC 61672 Class 1 compliant outdoor sound measurement
  • Complaint investigations

The exterior housing of Outdoor Microphones Types 4952 and 4952-A is made of a chemical resistant polymer that provides extremely high protection against corrosion. This and the microphones’ excellent long-term stability guarantee unattended outdoor use for at least a year with no significant change in sensitivity.

 Frequency response is precisely controlled, such that, with the appropriate linearization, IEC 61672 Class 1 requirements are fulfilled.

The windscreen upper part and bird spike can be removed in seconds, enabling easy acoustical calibration of the microphone.

Capacitance
12 pF
Diameter
1/2
Dynamic range
16 – 130 dB
Frequency range
8 – 20000 Hz
Inherent noise
16 dB A
Lower limiting frequency -3dB
Hz
Optimised
Outdoor
Polarization
Prepolarized
Polarization voltages
V
Pressure coefficient
-0.021 dB/kPa
Sensitivity
31.6 mV/Pa
Temperature coefficient
0.005 db/ºC
Temperature range
-30 – 60 C
Venting
Rear
Weight
gram
Sound field
Special
Microphone type
Outdoor