GRAS 46DP-1 1/8" LEMO Pressure Standard Microphone Set

The 46DP-1 is a pressure microphone set and as such optimized for acoustic measurements of the sound source in a closed coupler or the measurement of sound pressure at a boundary or wall; in which case the microphone forms part of the wall and measures the sound pressure on the wall itself

The high cut-off frequency makes it ideal for ultra-sonic diagnostics and impulse measurements, where minimum distortion and high resolution are obtained by the small size and fast response of the diaphragm.

Regarding temperature range, see the Specifications. Should higher temperature limits be required, we recommend considering  the GRAS probe microphones where the microphone and preamplifier can be isolated from the hot source.

Freq range: 6.5 Hz to 140 kHz
Dyn range: 52 dB(A) to 178 dB
Sensitivity: 0.9 mV/Pa