Extech Instruments 407780A Sound Level Meter W/Nist 407780A-NIST. The meter takes Leq and SEL measurements with A and C frequency weighting options. The meter has a built in datalogger that records up to 32000 records and PC interface to easily access...
Extech Instruments 407780A Sound Level Meter W/Nist 407780A-NIST. The meter takes Leq and SEL measurements with A and C frequency weighting options. The meter has a built in datalogger that records up to 32000 records and PC interface to easily access...
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