Handheld sonometer 428

digitaldata loggingfor airport

PCE-428 is a class 2 data-logging decibel meter that meets IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997 requirements. This portable high-accuracy sound level meter has a large easy-to-read illuminated LCD screen that displays the sound pressure level (SPL) numerically and graphically in real time. - Measuring range: 25 ... 136 db(A) - A, B, C and Z frequency weightings - Time weighting: Fast (125 ms), slow (1 sec) and impulse (35 ms), decay (1500 ms) - Adjustable data-recording interval from 1 s ... 24 h - 1/1 octave band filter (optional 1/3 octave band filter upgrade) - Includes factory calibration certificate according to ISO 9001