Special microphones

Special microphones

Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations.
  1. 41AC-3 CCP Outdoor Microphone
    Standard: IEC 61672-1
    TEDS
    Special features:
    Configurable for 90 or 0 degrees of incidence
    IP55 proof

    G.R.A.S. 41AC-3 CCP Outdoor Microphone for Community & Airport Noise

    The 41AC-3 is an 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. Learn More
  2. 40PH Free-Field Array Mic
    Freq range: 10 Hz to 50 kHz
    Dyn range: 32 dB(A) to135 dB
    Sensitivity: 50 mV/Pa

    G.R.A.S. 40PH CCP Free-field Array Microphone

    The G.R.A.S. 40PH Array Microphone is a low-cost microphone for general purpose measurements in arrays and matrices.

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  3. 40PL Free-Field Array Mic, High Pressure
    Freq range: 10 Hz to 20 kHz
    Dyn range: 32 dB(A) to 150 dB
    Sensitivity: 10 mV/Pa

    G.R.A.S. 40PL CCP Free-field Array Microphone, High Pressure

    The G.R.A.S. 40PL 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 around 150 dB.

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  4. 41AC-2 LEMO Outdoor Microphone
    Standard: IEC 61672-1
    Special features:
    RemoteCheck
    Configurable for 90 or 0 degrees of incidence
    IP55 proof

    G.R.A.S. 41AC-2 LEMO Outdoor Microphone with RemoteCheck for Community and Airport Noise

    The 41AC-2 is an 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. It has RemoteCheck for monitoring of the mesurement chain. Learn More
  5. 40AI 1/2" Intensity Mic Pair
    Freq response: IEC 60651 Type 0 IEC
    Dyn range: 20 dB(A) to 157 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 40AI 1/2" Ext. Polarized Intensity Microphone Pair

    The 40AI is an IEC 61094-compliant, WS2F ½" externally polarized sound-intensity microphone pair. The 40AI microphone pair consists of two phase-matched free-field condenser microphones with extremely well-controlled phase characteristics for use in sound-intensity probes. Their standard mounting threads make them compatible with all the usual available makes of measurement-microphone preamplifiers. Learn More
  6. 40AK 1/2" Intensity Mic Kit
    Freq response: IEC 60651 Type 0 IEC
    Dyn range: 20 dB(A) to 157 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 40AK 1/2" Ext. Polarized Intensity Microphone Kit

    The 40AK is an IEC 61094-compliant, WS2F ½" externally polarized sound-intensity microphone set. The microphones in the set are two 40AI microphones - two phase-matched free-field condenser microphones with extremely well-controlled phase characteristics for use in sound-intensity probes. This microphone pair has a free-field frequency response that complies with IEC 61043 1993 Class 1 and IEC 60651 Type 1 in the range from 20 Hz to 10 kHz. Learn More
  7. 40BI 1/4" Intensity Mic Kit
    Freq response: IEC 60651 Type 0 IEC
    Dyn range: 35 dB(A) to 172 dB
    Sensitivity: 4 mV/Pa

    G.R.A.S. 40BI 1/4" Ext. Polarized Intensity Microphone Kit

    The 40BI is an IEC 61094-compliant, WS3F ¼" externally polarized sound-intensity microphone pair. The 40BI microphone pair consists of two phase-matched free-field condenser microphones with extremely well-controlled phase characteristics for use in sound-intensity probes. Their standard mounting threads make them compatible with all the usual available makes of measurement-microphone preamplifiers. Learn More
  8. 40GK 1/2" Intensity Mic Kit
    Freq response: IEC 60651 Type 0 IEC
    Dyn range: 27 dB(A) to 163 dB
    Sensitivity: 12.5 mV/Pa

    G.R.A.S. 40GK 1/2" Prepolarized Intensity Microphone Kit

    The 40GK is an IEC 61094-compliant, WS2F ½" prepolarized sound-intensity microphone set. The microphones in the set are two 40GI microphones - two phase-matched free-field condenser microphones with extremely well-controlled phase characteristics for use in sound-intensity probes. This microphone pair has a free-field frequency response that complies with IEC 61043 1993 Class 1 and IEC 60651 Type 1 in the range from 20 Hz to 10 kHz. Learn More
  9. 40GI 1/2" Intensity Mic Pair
    Freq response: IEC 60651 Type 0 IEC
    Dyn range: 27 dB(A) to 163 dB
    Sensitivity: 12.5 mV/Pa

    G.R.A.S. 40GI 1/2" Prepolarized Intensity Microphone Pair

    The 40AGI is an IEC 61094-compliant, WS2F ½" prepolarized sound-intensity microphone pair. The 40GI microphone pair consists of two phase-matched free-field condenser microphones with extremely well-controlled phase characteristics for use in sound-intensity probes. Their standard mounting threads make them compatible with all the usual available makes of measurement-microphone preamplifiers. Learn More
  10. 50VI-3 Wide-band intensity probe
    Freq range: IEC 61043
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50VI-3 Wide-band intensity probe

    The G.R.A.S. Wide-band Intensity Probe Type 50VI-3 is a flexible and adjustable four-channel sound-intensity probe.

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  11. 50AI-B 1/2"  Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-B 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-B Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

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  12. 50GI CCP Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 27 dB(A) to 146
    Sensitivity: 12.5 mV/Pa

    G.R.A.S. 50GI CCP Intensity Probe

    G.R.A.S. 50GI is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small rugged 1/4" CCP preamplifiers ensure minimum disturbances to the sound field for accurate measurements in the full frequency range.

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  13. 50VI-1 Vector intensity probe
    Freq range: IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50VI-1 Vector intensity probe

    The G.R.A.S. 50VI-1 Vector Intensity Probe is a flexible and adjustable, two or three-dimensional sound-intensity probe. The probe handle has marked inputs for 3 pairs of preamplifiers (a pair for each of the mutually-perpendicular directions) and a 24-pin LEMO output socket at its base for connecting it to a suitable Power Module (e.g. Type 12AC) or Power Modules (via cable adapter).

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  14. 50GI-R Intensity Probe with Remote Control
    Freq range: IEC 61043 Class 1
    Dyn range:
    Sensitivity:

    G.R.A.S. 50GI-R CCP Intensity Probe with Remote Control

    The 50GI-R is a sound intensity probe for direct connection to signal analyzers or data acquisition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small rugged ¼" CCP preamplifiers ensure minimum disturbances to the sound field for accurate measurements in the full frequency range.

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  15. 50GI-P CCP Rugged Intensity Probe
    Freq range: IEC 61043
    Dyn range:
    Sensitivity:

    G.R.A.S 50GI-P CCP Rugged Intensity Probe

    Type 50GI-P is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe..

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  16. 50GI-RP CCP Rugged Intensity Probe
    Freq range: IEC 61043 Class 1
    Dyn range:
    Sensitivity:

    G.R.A.S 50GI-RP CCP Rugged Intensity Probe

    Type 50GI-RP is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe..

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    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-C 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-C Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

    Learn More
  18. /
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-D 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-D Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

    Learn More
  19. 40HT 1/2'' Lownoise Mic System, Confined Spaces
    Freq range: 10 Hz to 16 kHz
    Dyn range: 6.5 dB(A) to 113 dB
    Sensitivity: 800 mV/Pa

    G.R.A.S. 40HT 1/2'' Lownoise Microphone System for Confined Spaces

    The G.R.A.S. 40HT ½-inch Lownoise Microphone System for Confined Spaces has specifications similar to G.R.A.S. 40HH but is designed for little space applications.

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  20. 40HH 1/2'' Lownoise Mic System
    Freq range: 10 Hz to 16 kHz
    Dyn range: 6.5 dB(A) to 113 dB
    Sensitivity: 800 mV/Pa

    G.R.A.S. 40HH 1/2'' Lownoise Microphone System

    The G.R.A.S. 40HH ½" Lownoise Microphone System can measure sound pressure levels well below the threshold of human hearing; and is amply suitable for use in sound-power measurements on even very quiet products. Its very wide dynamic range permits measurements down to below – 2 dB re. 20 μPa (in 1/2-octave bands) from 20 Hz to 20 kHz.

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