Extech 407730 Digital Sound Level Meter features:?áAnalog bargraph with 50dB range updates every 40ms; +/-2dB accuracy with 0.1dB resolution; A+C weighting;?áAC analog output;?áRecord Max/Min values over time;?áUtilizes 0.5"(12.7mm) electret condenser microphone;?á40 to 130dB measuring range.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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