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407738

更新时间： 2024-01-11 00:43:55

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407738 数据手册

User's Guide

Digital Sound Level Meter

Model 407738

With Memory

Introduction

Congratulations on your purchase of the Extech 407738 Digital Sound Level Meter.

The 407738 measures and displays sound pressure levels in dB (decibels) from 26 to

130dB in six measurement ranges. The microphone can be removed and remotely

stationed for convenience. In addition to the LCD numerical displays, a bargraph is

included for quick and easy viewing of sound level changes. Features include selectable

Frequency Weighting (‘A’ and ‘C’), selectable Response Time (Fast and Slow), Max

Hold, and a 99 reading storage utility.

Careful use of this meter will provide years of reliable service.

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