The measurement microphone sets have been combined so they fulfil our users’ typical measurement needs. Independently of your measurement system and application you should be able to find a set that suits your needs. The microphone sets can be connected directly to all professional measurement systems and as indicated they are available for both CCP and 7-pin LEMO inputs.

All microphone sets are delivered as a unit and are calibrated accordingly. The sets are delivered with calibration charts including sensitivity values and frequency response curves for the complete set. The sensitivity value can therefore be used directly in your system setup.

Pick your choice of microphone set or get guidance from the microphone guide.

GRAS 146AE 1/2″ CCP Free Field Microphone Set

The 146AE is a rugged free-field microphone set for extreme environments, and protected against shock, vibration, water, dust and extreme temperatures. It is to be used with constant current power source (ICP, IEPE etc.).

Frequency Range: 3.15 Hz to 20 kHz
Dynamic Range: 18 dB(A) to 133 dB
Temperature: -40 to +125 ºC
IP67

GRAS 147AX CCP Rugged Pressure Microphone

This pressure microphone has been specially designed to achieve repeatable measurements for engine noise testing in positions that are hard to reach with other types of microphones. It is to be used with constant current power source (ICP, IEPE etc.).

Freq range: 3.15 Hz to 20 kHz
Dynamic range: 19 dB(A) to 133 dB
Sensitivity: 42 mV/Pa
Temperature: -40 to +125 °C
IP67

GRAS 46AD 1/2″ CCP Pressure Standard Microphone Set

It is general purpose pressure microphone to be used with constant current power source (ICP, IEPE etc.).

Freq range: 3.15 Hz to 10 kHz
Dynamic range: 18 dB(A) to 138 dB
Sensitivity: 50 mV/Pa
Temperature range: -30 to 85 °C

GRAS 46AM 1/2” CCP Free-field Standard Microphone Set

It is general purpose free field microphone to be used with constant current power source (ICP, IEPE, etc.)

Freq range: 3.15 Hz to 31.5 kHz
Dynamic range: 25 dB(A) to 149 dB
Sensitivity: 14.5 mV/Pa
Temperature range: -30 to 70 °C