PCE Deutschland PCE-428 sound level meter 25 - 136 db(A) 20 Hz - 12.5 kHz octave filter 20 Hz-8kHz accuracy class 2

The PCE-428 sound level meter is an optimal sound level meter for measurements at workplaces, construction sites, in road traffic, airports, etc. The sound level meter is a class 2 device and is equipped with an octave band frequency filter. Optionally, the PCE-428 sound level meter can be upgraded by a 1/3 octave band filter. In addition to the numerical display of the measured value, a graph can show the course of the sound level.

The sound level meter has different frequency weightings such as A, B, C and Z. Furthermore, the sound level meter can display measurements with the time weightings Fast, Slow, Impulse and Peak. The measuring range of the sound level meter extends from 25 ... 136 dbA at a frequency of 20 Hz ... 12.5 kHz. 3 different measuring profiles can be stored in the sound level meter. Here the user can decide which parameters the sound level meter should record. For example, Laeq, LcPeak, LaFmax, LaFMin etc. can be selected here.

The peak hold function in the sound level meter makes it possible to record the maximum sound pressure level during a long-term measurement and to freeze it in the display. A 24-bit AD converter and the specially developed electronics of the sound level meter help to reduce the inherent noise to a very low level. Sampling the measurement signal at more than 48 kHz enables high accuracy and improved stability of the measurement value on the sound level meter.