The NA-42 has three settings for frequency weighting (A, C, Flat) and time weighting (Fast, Slow, Impulse), which covers the requirements of general and environmental acoustic measurements.
Measurement mode can be set to sound pressure level, sound level maximum, or peak sound pressure level.
One or two decimal points can be selected for the numeric readout of measurement results.
In addition, the large LCD panel shows settings and various other information.
Besides AC and DC output, a serial interface and a comparator output are also available.
This makes it easy to integrate the unit in a measurement or monitoring system.
Thanks to its handy box-shaped design, the unit is easily portable, and power can be supplied either by an AC adapter or from internal batteries.
Whether in the lab or in the field, the NA-42 always is a capable performer.
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