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GRAS 40HT
GRAS 40HT
GRAS 40HT

The 40HT is a 1/2" low-noise probe-like system for confined spaces, very low noise floor, suitable for low sound measurements in tubes or tight areas.

· Key Specifications:

  • Sensitivity: High.
  • Dynamic range: Low noise.
  • Frequency range: Wide.
  • Noise floor: Very low.
  • Connector: Complete system.
  • Polarization: Externally polarized.
  • Design: Probe-like.
  • Application: Confined spaces.
Product details
Related Products
GRAS 46AO-S2
GRAS 46AO-S2

The 46AO-S2 is a very short 1/2" CCP pressure microphone set, 12.5 mV/Pa sensitivity, suitable for measurements in confined spaces with short preamplifier.

· Key Specifications:

  • Sensitivity: 12.5 mV/Pa.
  • Dynamic range: 20 dB(A) to 160 dB.
  • Frequency range: 3 Hz to 10 kHz.
  • Operating temperature: -30°C to +85°C.
  • Connector: Microdot.
  • Type: Pressure very short.
  • TEDS: Yes.
  • Length: Very short.
GRAS 46BH-1
GRAS 46BH-1

The 46BH-1 is a 1/4" LEMO pressure high pressure microphone set with 200V polarization, low sensitivity for very high sound levels.

· Key Specifications:

  • Sensitivity: Low for high pressure.
  • Dynamic range: High peak SPL.
  • Frequency range: High frequency.
  • Operating temperature: -30°C to +100°C.
  • Connector: LEMO.
  • Polarization: 200 V.
  • TEDS: Yes.
  • Type: Pressure high pressure.
GRAS 47BG-FV
GRAS 47BG-FV

The 47BG-FV is a miniature 1/4" CCP flush-mount high pressure front vented microphone set, handling very high levels, suitable for surface measurements in limited spaces with front venting.

· Key Specifications:

  • Sensitivity: Low for high pressure.
  • Dynamic range: High peak SPL.
  • Frequency range: High frequency.
  • Operating temperature: -30°C to +100°C.
  • Connector: CCP.
  • Mounting: Flush-mount.
  • Venting: Front.
  • Size: 1/4".
GRAS 147AX
GRAS 147AX

The 147AX is a rugged CCP pressure microphone set specialized for hot/cold engine noise measurement in automotive NVH, with three-layer diaphragm protection and new form factor for quick mounting, high harsh environment tolerance.

· Key Specifications:

  • Sensitivity: 50 mV/Pa.
  • Dynamic range: Wide for engine noise.
  • Frequency range: Suitable for automotive NVH.
  • Operating temperature: High (hot engine).
  • Connector: BNC.
  • Type: Rugged pressure.
  • TEDS: Yes.
  • Application: Engine noise testing.
GRAS 46AO
GRAS 46AO

The 46AO is a standard 1/2" CCP pressure microphone set, 12.5 mV/Pa sensitivity, suitable for high sound pressure measurements with wide dynamic range.

· Key Specifications:

  • Sensitivity: 12.5 mV/Pa.
  • Dynamic range: 20 dB(A) to 160 dB.
  • Frequency range: 3 Hz to 10 kHz.
  • Operating temperature: -30°C to +85°C.
  • Connector: BNC.
  • Type: Pressure.
  • TEDS: Yes.
  • Standard: IEC 61094.
GRAS 46BG-FV
GRAS 46BG-FV

The 46BG-FV is a 1/4" CCP pressure front vented high pressure microphone set, low sensitivity for high levels with front venting.

· Key Specifications:

  • Sensitivity: Low.
  • Dynamic range: High peak.
  • Frequency range: High.
  • Operating temperature: -30°C to +100°C.
  • Connector: Microdot.
  • Type: Pressure front vented high pressure.
  • TEDS: Yes.
  • Venting: Front.
GRAS 46BP-1
GRAS 46BP-1

The 46BP-1 is a standard 1/4" LEMO pressure microphone set with 200V polarization, suitable for high-frequency pressure measurements with high reliability.

· Key Specifications:

  • Sensitivity: ~4 mV/Pa.
  • Dynamic range: 35 dB(A) to 160 dB.
  • Frequency range: 4 Hz to 70 kHz.
  • Operating temperature: -30°C to +100°C.
  • Connector: LEMO.
  • Polarization: 200 V.
  • TEDS: Yes.
  • Type: Pressure.
GRAS 47HC
GRAS 47HC

The 47HC is a 1/2" CCP low-noise system, very low noise floor, suitable for low sound measurements with convenient CCP connection.

· Key Specifications:

  • Sensitivity: High.
  • Dynamic range: Low noise.
  • Frequency range: Wide.
  • Noise floor: Very low.
  • Connector: CCP.
  • Polarization: 0 V.
  • Size: 1/2".
  • Application: Low noise testing.