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Connector Type
RS232 Connectors
Sensor Type
Tool Type
Noise Meter
IP / Network / Ethernet
Serial - RS-232
Battery Operated
Ethernet Compatible
LCD Display
# of Buttons
6 Buttons
Ease of Installation
Beginner (Installs < 10 minutes)
Extech Instruments
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Sound Level Datalogging Kit with 5 Dosimeters and Sound Calibrator
Extech Instruments 407355 Noise Dosimeter/Datalogger Kit
Extech Instruments 407355 Noise Dosimeter/Datalogger Kit
Extech Instruments 407355 Noise Dosimeter/Datalogger Kit
Item# 90243
Price: Normally $699.00 
Hot Deal $648.97
Free shipping on orders over $175 - See Details


  • Perform OSHA and IEC Noise accumulation surveys
  • Adjustable Criterion Level, Exchange Rate, and Threshold
  • Datalogs up to 4500dB readings when used as a sound level meter
  • Stores up to 5 dosimeter surveys

Essential Info

The Extech Instruments 407355 Noise Dosimeter/Datalogger Kit is low cost, lightweight, and easy to use for measuring total sound exposure for over an 8-hour period. Features 5 dosimeters and sound calibrator, the datalogger performs OSHA and IEC Noise accumulation surveys. Adjustable criterion level, exchange rate and threshold allow you to measure different types of noises. 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. With careful use, this meter will provide years of reliable service.

What's Included

  • 5 - 407355 Noise Dosimeters
  • Belt Clip
  • Clip-On 0.5" Microphone with 2.6ft(0.8m) Cable
  • Mini Screwdriver
  • Cables
  • PC Software
  • Hard Plastic Carrying Case
  • 4 AAA Batteries
  • More Info

    Additional Features
  • Applications include Personal accumulated noise exposure measurement, Workplace noise assessment, OSHA and other regulatory agency compliances
  • Optional 94/114dB calibrator to perform "before" and "after" calibration checks per ANSI standards
  • 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.
  • 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)
  • Microphone: 1/2 inch electret condenser with 31" cable
  • Battery Life: 34 hrs
  • Event Storage: 5 surveys
  • RS232 Interface: yes
  • Real time clock: yes
  • Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Extech Instruments Corp, Tel: (781) 890-7440 Ext 200


    1 Ratings
    5 star: 0%  (0)
    4 star: 0%  (0)
    3 star: 100%  (1)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (1 customer ratings)
    Share your thoughts with other customers
    RAVI -- bridgewater, NJ   6/28/2014
    Incorrect description of the item. This is not a kit. just one 407355 meter. The description says 5 meters included. The one meter included worked good so 3 stars.

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