REED Instruments SD-4023 Sound Level Meter, Datalogger, 30 to 130dB
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<b>[Product Information]</b><br>
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<li>High accuracy of ±1.4 dB meets Type 2 standards</li>
<li>Triple range measurement (50dB dynamic range)</li>
<li>Real time data logger with integral SD memory card</li>
<li>User selectable sampling rate from 1 to 3600 seconds</li>
<li>Includes batteries and manual</li>
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