Introduction Thank you for selecting the Extech Model 407736. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit the Extech Instruments website (www.extech.com) to check for the latest version of this User Manual.
Set the meter to F, Hi, and A, and adjust the potentiometer for a display of exactly 94.0dB. If the internal and external settings are not within 1.5dB of each other, the meter will require an internal calibration. Contact Extech 407736-en-GB_V2.5 8/17...
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