Tag: Digital Sound Level Meter
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EXTECH Digital Sound Level Meter User Manual
EXTECH Digital Sound Level Meter User Manual Additional User Manual Translations available at www.extech.com Introduction Congratulations on your purchase of the Extech 407750. This device measures sound level in dB and the measurement range can be set automatically or manually. The 407750 offers selectable frequency weighting (`A’ and `C’) and Time Response (Fast and Slow).…