... IEC 61672 class 1 Meas. Range : 25 dB ~ 130 dB(A) (re. 20 μPa) Freq. Range: 10 Hz ~ 20 kHz ... Freq. Weighting: A, C, F (flat) Time Weighting: F, S (Exp. average (RMS ... 1, disc x 1, instrument manual x 1 Available: Noise Analyser AWA6270+AB, AWA6270+AC, AWA6270+BC, AWA6270+ABC, Sound Level ... 2 m mic. support rod, SLM tripod, carrying case Frequency analyser AWA 6270+