IET 1982 Overview
Lightweight and portable, the General Radio 1933 Sound Level Meter makes precision sound level measurements and octave band analysis. Capable of operating for 20 hours on self-contained batteries, this instrument is ideally suited for field use. Includes A, B, and C weighting characteristics and ten octave band filters with band center frequencies from 31.5 Hz to 16 kHz. An additional flat frequency response extends from 5 Hz to 100 kHz. For added flexibility, external filter jacks permit the use of special weighting or filters in place of the built-in filter networks.
