Class 2 1/3 Octave Sound Level Meter , with Type 2
micophone, with 4G microSD card, With carrying case, a
9-cm windscreen, 4 AA batteries, and calibration chart,
Frequency Weighting of Parallel A, B, C, and Z
1000Hz, 94dB calibrator, Type 2, with adaptor for 1/2”
and 1/4” microphones
1/3 Octave option for 308 and 309