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Sound & Noise Dosimeter 70-140dB (407355) DataLogger Extech

Model #: 407355
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Category Sound Level Meters

The Extech Personal Noise Dosimeter is a compact device for monitoring the amount of accumulated sound exposure delivered to an object or area. For use in personal/workplace environments, this logger can perform OSHA and IEC Noise accumulation surveys along with monitoring personal exposure over an 8-hour period.

This logger can record up to 8800 readings when used as a sound level meter and can record up to 5 dosimeter surveys. These surveys include Start/Stop time, %Dose, TWA and peak flags when used in dosimeter mode.

Included with this logger: Belt clip and clip-on 0.5 microphone with 2.6ft (0.8m) cable, 4 AAA batteries, mini screwdriver and carrying case. Also includes software and cables.


  • Perform Leq and SEL measurements
  • OSHA compliance Testing
  • Noise Ordinance
  • Machine Noise Evaluation
  • Data Storage for pertinent records


  • Range:
    • 70 - 140 dBA (A weighted decibels) for sound level
    • 0.01 to 9999 %DOSE for noise exposure surveys
  • Resolution: 0.1dB
  • Accuracy: 1.5dB
Applicable Standards: Meets ANSI S1.25(1991) Type 2, ISO-1999, BS 402 (1983)
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: Fast, Slow
Battery Life: 34 hrs.
Event Storage: 5 surveys
High Level /Peak Flag: 115dB / 140dB
Microphone: 1/2 inch Electret condenser with 31 cable
Dimensions: 4.2" x 2.5" x 1.3 (106mm x 64mm x 34mm)
Weight: 12.3oz. including batteries

Download Users Manual (approx 575kb)

UPC: 793950403556
Search Category: Hardware > Tools > Measuring Tools & Sensors > Sound Meters
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Category Sound Level Meters
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