Type 4191 is designed for high-precision, free-field measurements where a wide bandwidth is required. Being externally polarized, Type 4191 must be used with a classical preamplifier.
Uses
Precision measurements to 40 kHz
Premium class sound level meters
Equipment complying with IEC 61672 class 1
Features
Sensitivity: 12.5 mV/Pa
Frequency: 3.15 Hz – 40 kHz
Dynamic Range: 20 – 162 dB
Temperature: – 30 to + 300°C (– 22to + 572°F)