Picolo II brand Soft dB, class 2 with calibration certificate, manufactured in Canada, measure total equivalent level (Leq) in weights A, C, Z, level of sound exposure, percentile levels (L90, L10, etc.), peak level in any of the weights, Lmax, Lmin, FFT (transformed from Fourier), fast and slow calibration weights (List), data can be exported to the computer and stored. It allows measurement of Leq in eighth and third bands.