... 1).Real Time 1/1 & 1/3 Octave Band Analysis 2).Meas.Function:Lp,Leq,LE,Lmax,Lmin 3).RS-232 Interfac Sound Analyzer with 1/3 ... , BS EN 6065, 1994, IEC 1260-1995Microphone 1/2-inch Electret condenser microphoneAccuracy +/- 1.5dB (ref 94dB @ 1KHz)Measurement range 30dB ... & Approx. 950g (including batteries)Accessories Instruction manual, Battery x 4, Carry case, Software, RS-232 cable, 9 Pin to 25 ...