Extech SL400 Personal Noise Dosimeter with USB Interface
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<b>[Product Information]</b><br>
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<li>Measures frequency weighted noise exposure and peak (C, Z) sound level</li>
<li>Datalog's up to 999,999 readings when used as a sound level meter with sampling times between 1 second and 24 hours</li>
<li>Sound level mode: displays sound level, min/max, time-averaged sound level (Leq), peak, and sound exposure level (SEL)</li>
<li>Adjustable Criterion Level, Exchange Rate and Threshold</li>
<li>One user-defined measurement setup</li>
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