Type 4190 is designed for high-precision free-field measurements where a microphone with high sensitivity is required. Being external polarized type 4190 must be used with classical preamplifier.
Precision sound measurement
Premium class sound level meters
Equipment complying with IEC 61672 class 1
Sensitivity: 50 mV/Pa
Frequency: 6.3 Hz –20 kHz
Dynamic range: 14.6 – 146 dB
Temperature: – 30 to +150°C (– 22 to +302°F)
Polarization: 200 V
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