GRAS Sound & Vibration - Special Microphone Sets

outdoor & environmental  microphone sets

ultra-low frequency microphone sets

Type 47AC


Freq range: 0.09 Hz to 20 kHz

Dyn range: 20 dB(A) to 148 dB

Sensitivity: 8 mV/Pa

Polarising Voltage: 0 V

Use: ultra-low frequency

surface microphone sets




'button' and flush mount microphone sets & kits


low noise microphone sets

array & QC microphone sets


probe microphone sets

Freq range: 6.5 Hz to 140 kHz

Dyn range: 47 dB(A) to 177 dB

Sensitivity: 0.62 mV/Pa

Polarising Voltage: 0 V

Use: aero-acoustics

(1m integrated cable to preamp)


    1.  many special microphone sets that have an integrated cable can be ordered with custom cable lengths - contact us of details

    2.  we aim to have all information accurate and current, please be aware that 'correct' specifications/details are as per GRAS website 

           (click on the product to view detailed specifications/information)

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