... 1/3 Octave band Analysis TES-1358 Sound Analyzer Real Time 1/1 & 1/3 Octave band Analysis ... TES-1358A (230V) TES-1358B (110V) Real-time 1/1-Octave and 1/3-Octave analysis. ... linearity range of 100dB. Large display with backlighting. Real time clock with calendar. Memory max. 10000 records ... Bar graph : Scale range 100dB , update cycle 0.125s Real time clock : Year, Month, Day, Hour, Minute, ...