Specifications

Measurement range for Z-wide levels
Frequency  Upper Lower Ref.
31.5 Hz 137 dB  50 dB 114 dB 
1  kHz 137 dB 50 dB 114 dB 
4 kHz 137 dB 50 dB 114 dB 
8  kHz 137 dB 50 dB 114 dB 
12.5  kHz 137 dB 50 dB 114 dB