Extech 407355 Specifications
Specifications subject to change without notice.
Copyright © 2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
www.extech.com
3/28/08 - R1
Low cost, lightweight, and easy to use
For measuring total sound exposure over an 8-hour period
Personal Noise Dosimeter
Features:
• Perform OSHA and IEC Noise accumulation surveys
• Adjustable Criterion Level, Exchange Rate, and Threshold
• Applications include Personal accumulated noise exposure
measurement, Workplace noise assessment, OSHA and
other regulatory agency compliances
• Datalogs up to 4500dB readings
when used as a sound level meter
• Optional 94/114dB calibrator to perform “before” and
“after” calibration checks per ANSI standards
• Stores up to 5 dosimeter surveys.
Data includes Start/Stop Time, %Dose, TWA,
peak flags, when used in the Dosimeter mode
• Bi-directional RS-232 with Windows® 95/98/NT/2000/ME/XP
compatible software to control setup and retrieve stored
events or analyze real time measurements.
Complete with 9 pin to 25 pin adaptor, and RS-232 cable.
• Includes belt clip and clip-on 0.5” microphone with 2.6ft
(0.8m) cable, 4 AAA batteries, mini screwdriver and carrying
case, software, and cables
407355-KIT-5 Dosimeter Kit
Ordering Information:
407355 ................Noise Dosimeter/Datalogger
407355-NIST ......407355 with NIST certificate
407355-KIT ........Noise Dosimeter/Datalogger Kit
407744 ................94dB Sound Level Calibrator
407766 ................94/114dB Sound Level Calibrator
USB100................RS-232 to USB Adaptor
Specifications
Standards Meets ANSI S1.25(1991) Type 2, ISO-1999, BS 402 (1983)
Range/Resolution 70 - 140 dBA / 0.1dB
Digital Display LCD 0.01-9999%
Criterion Level 80, 84, 85, or 90dB
Exchange Rate 3, 4, 5 or 6 dB
Threshold Level 70-90 (1db steps)
Frequency weighting A
Response Rate Fast or Slow
High Level Detector/Peak Flag 115dB / 140dB
Dimensions/Weight: 4.2 x 2.5 x 1.3” (106 x 64 x 34mm) 8oz. (227g) incl.batteries
Microphone 1/2 inch electret condenser with 31” cable
Battery Life 34 hrs
Event Storage 5 surveys
RS232 Interface yes
Real time clock yes
Includes PC Windows® compatible software to maintain
records and statistically analyze acquired data
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