Class 1 1/1 Octave Sound Level Meter , with Tpye 1
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 and 114dB calibrator, Type 1, with adaptor
for 1”,1/2”, and 1/4” microphones