ACO 6226 声级计 (Class 2, 20Hz~ 8kHz)

Applicable standards 
+ IEC 60651 Type 2
+ IEC 60804 Type 2
Measurement functions 
+ Lp : Sound pressure level
+ Leq : Equivalent continuous A-weighted sound pressurelevel
+ Le : Sound exposure level
+ Lmax : Maximum sound level
+ Lmin : Minimum sound level
+ Lx : Percentile level(5 values of free select)
+ Lpeak : Waveform peak hold(C weighting selectable)
Max. Measurement Level+ 137 dB rms, 130 dB at c.f.3
Measurement Range 
+ 28dB to 130dB (A)
+ 33dB to 130dB (C)
+ 38dB to 130dB (F)
Time weighting: Fast, Slow
Microphone: 1/2 Electret condenser microphone
Display 
+ Type : Liquid crystal and Back light(128x64 points)
+ Digital display : 4 digits, Display Period:1s
+ Bar display : Display Period:1s
Battery: Four 1.5V alkaline cells IEC type LR6, optional AC adapter
Dimensions and weight: 85(W)x284(H)x46(D). Approx.420g