Special microphones
Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations.
GRAS special microphones are categorized as
Freq range: 5 Hz to 70 kHz
Dyn range: 46 dB(A) to 167 dB
Sensitivity: 1.8 mV/Pa
GRAS 40LS 1/4" CCP Precision Surface Microphone
The GRAS 40LS High-Precision Surface Microphone is a high-precision microphone for measurements on planar and curved surfaces. It has a wide useful frequency range reaching up to 70 kHz and a large dynamic range topping at around 167 dB...
Freq range: 10 Hz to 20 kHz
Dyn range: 33 dB(A) to 135 dB
Sensitivity: 50 mV/Pa
GRAS 40PH-10 CCP Free-field Array Microphone
The GRAS 40PH-10 Array Microphone is a low-cost microphone for general purpose measurements in arrays and matrices...
Freq range: 10 Hz to 20 kHz
Dyn range: 26 dB(A) to 145 dB
Sensitivity: 18 mV/Pa
GRAS 40PK CCP Free-field QC Microphone, Short
The 40PK is a free-field microphone for Quality Control and measurements in confined spaces. It has a wide frequency range reaching up to 20 kHz and a large dynamic range from <26 dB (A) to 145 dB...
Freq range: 10 Hz to 20 kHz
Dyn range: 33 dB(A) to 142 dB
Sensitivity: 9 mV/Pa
GRAS 40PL-10 CCP Free-field Array Microphone, High Pressure
The GRAS 40PL-10 Array Microphone is a low-cost microphone for general purpose measurements in arrays and matrices. It has a wide useful frequency range reaching up to 20 kHz and a large dynamic range topping at 147 dB...
Freq range: 10 Hz to 20 kHz
Dyn range: 33 dB(A) to 142 dB
Sensitivity: 9 mV/Pa
GRAS 40PL-11 Short CCP Free-field Array Microphone, High Pressure
The GRAS 40PL-11 Array Microphone is a low-cost microphone for general purpose measurements in arrays and matrices. It has a wide useful frequency range reaching up to 20 kHz and a large dynamic range topping at 147 dB peak...
Freq range: 10 Hz to 12 kHz
Dyn range: 27 dB(A) to 145 dB
Sensitivity: 15 mV/Pa
GRAS 40PS-1 CCP Surface Microphone
The GRAS Surface Microphone 40PS-1 is a low-profile, light surface microphone for general purpose measurements on planar and curved surfaces exposed to slipstreams...
Freq range: 2 Hz to 8 kHz
Dyn range: 40 dB(A) to 166 dB
Sensitivity: 3 mV/Pa
GRAS 40SA Probe Microphone
The GRAS 40SA Probe Microphone is a small, compact unit for sound-pressure measurements in small enclosures, in harsh environments and in very close proximity to sound sources. The high acoustic input impedance at the tip of the probe minimizes its influence on the acoustic field, while the stainles..
Freq range: 2 Hz to 8 kHz
Dyn range: 40 dB to 160 dB
Sensitivity: 3 mV/Pa
GRAS 40SC CCP Probe Microphone
The CCP Probe Microphone 40SC is a small, constant-current powered, compact unit for sound-pressure measurements in small enclosures, in harsh environments and in very close proximity to sound sources. The high acoustic input impedance at the tip of the probe minimizes its influence on the acoustic ..
Standard: IEC 61672-1
TEDS
Special features: Configurable for 90 or 0 degrees of incidence
IP55 proof
GRAS 41AC-3 CCP Outdoor Microphone for Community & Airport Noise
The 41AC-3 is a SysCheck2™ enabled outdoor microphone for unattended use for prolonged periods of time. It can be used for community noise applications or for monitoring of overhead aircraft noise...
Standard: IEC 61672-1
Configurable for 90 or 0 degrees of incidence
IP55 proof
GRAS 41AC-4 LEMO Outdoor Microphone for Community and Airport Noise (0 V pol.)
The 41AC-4 is an outdoor microphone for unattended use for a prolonged period of time. It can be used for community noise applications or for monitoring of overhead aircraft noise...
Dyn range: 20 dB(A) to 156 dB
Sensitivity: 50 mV/Pa
0° incidence (airport noise)
GRAS 41AM Permanent Outdoor Microphone System for airport noise
The GRAS 41AM Outdoor Microphone System is for outdoor use whenever trouble-free acoustic measurements and, in particular, noise monitoring around airports are required...
Dyn response: 20 to 156
Sensitivity: 50 mV/Pa
90° incidence (community noise)
GRAS 41CN Permanent Outdoor Microphone System for community noise
GRAS 41CN Permanent Outdoor Microphone System for community noise..
