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User's Manual
EXTECH
:iMSTRUMEMTS
Datalogging Sound Level Meter
Model 407764
Range; 30dB to 130dB
4-digit LCD Display with 0.1 dB resolution
A and C Frequency Weighting
RS-232 PC Interface with
16,000 point datalogger and
Date / Time Stamp
Auto-Ranging
SLOW
A/C
MAS
Introduction
Congratulations on your purchase of Extech's Datalogging Sound Level Meter. The meter Is
capable of performing all your noise measurements needs in addition to it's capabilities for data
acquisition (direct data storage to a PC) or datalogging (data storage to Internal memory for
later download). Data storage enables the user to save data, analyze data and generate
reports. This professional meter, with proper care, will provide years of safe reliable service.
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