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Environmental Tester Guide

Extech 407355-KIT-5 Noise Dosimeter/Datalogger Kit

Extech 407355-KIT-5
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  • 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.
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Product Name Minimum Sound Level Maximum Sound Level Display (Sound Level Meter) Availability Price  
70 dB 140 dB Digital Availability
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70 dB 140 dB Digital Availability
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DOSIMETER W/ NIST, 407355- PLEASE NOTE: NIST Calibration typically...
70 dB 140 dB Digital Availability
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Edu Price Standard Price Gov't Price
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Product Information

Extech 407355-KIT-5 Noise Dosimeter/Datalogger Kit Details

The Extech 407355 KIT 5 Noise Dosimeter is a fantastic quality product that is perfect for accurately measuring noise levels in the workplace.

Dosimeters can be used for an array of things, and have the main objective of finding how much exposure a person has to a certain environmental factor. In the case of the Extech 407355 KIT 5 Noise Dosimeter/Datalogger Kit, the aim is to calculate noise levels in a workplace over an eight-hour period, before the data logger software included gets to work in determining whether the levels that staff are exposed to is safe.

As each of the dosimeters will need to be used for prolonged periods of time, it’s important that battery life is long, ensuring that any inspections won’t be interrupted. Extech realised this, and have ensured that the power on any of the devices in the kit will last for 34 hours without the need for a recharge – the equivalent of a full working week!

Up to five surveys can be stored through the Extech 407355 KIT 5 Noise Dosimeter/Datalogger Kit without the recordings from the kit’s micro phones requiring a connection to the PC. When you are ready to perform some evaluation, the graphs provided when data logging can provide some useful information.

This specialist data logging equipment meets ANSI S1.25 (1991) Type 2 standards, and also adhere to ISO-1999, with range resolution of 70-140 dBA and accuracy to a tenth of a decibel, the Extech 407355 KIT 5 Noise Dosimeter/Datalogger Kit has the advanced features needed to allow you to perform thorough inspections. Additional accessories that can also be considered include sound level calibrators at 94 and 114dB, in addition to a cable to connect the data logger’s RS-232 port to the USB interface of a PC.

In the box you will find all of the components need to get to work with your data logging, such as a microphone extension cable, a belt clip for added portability, and a portable carry case for the main unit.

What's In The Box

  • Five 407355 Noise Dosimeters with microphones
  • Serial cable
  • PC Software
  • 407766 94/114dB Sound Calibration
  • Hard plastic carrying case


Model: 407355
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

Extech 407355-KIT-5 Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Environmental Testers / Physical Property/Sound Level Meters Template

Minimum Sound Level70 dB
Maximum Sound Level140 dB
Display (Sound Level Meter)Digital
Single RangeYes
Dual RangeNo
A Frequency WeightingYes
Resolution (Sound Level Meters)0.1 dB
Calibrator CapabilityYes
Noise Level MeasurementYes
Fast/Slow Time AdjustmentYes
Tripod MountNo
Type (Sound Level Meter)II

Test Equipment General Attributes

Warranty1 YEARS
Calibration IncludedFactory Calibration
Power Supply VoltageBattery Powered
Safety ApprovalCE
Data Logging What's This?Yes
Interfaces I/O RS-232
Battery TypeAAA 
Country of OriginTaiwan


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