TYPE 4952

Outdoor Microphone

Outdoor Microphone Type 4952 provides class 1 compliant outdoor sound measurement in compliance with IEC 61672. The microphone is built from polymer materials, protecting the microphone from changing weather in longer periods of outdoor use.

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

USE SCENARIOS

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 outdoor use for at least a year with no significant change in measuring 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.

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Specifications

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