Personal Noise Dosimeters EXTECH 407355

The Extech 407355 personal noise dosimeter is a low cost, lighweight and easy-to-use instrument for measuring total sound exposure over an 8-hour period. The Extech 407355 personal noise dosimeter is perfect for performing OSHA and IEC noise accumulation surveys. The Extech 407355 personal noise has an adjustable criterion level, exchange rate, and threshold. Up to 5 dosimeter surveys can be stored in the Extech 407355 personal noise dosimeter, and the data includes start/ stop time, % dose, TWA, and peak flags when in dosimeter mode.

When used as a sound level meter, the 407355 Extech 407355 personal noise dosimeter datalogs up to 4500dB readings. An optional 94/ 114dB calibrator is available to perform " before " and " after " calibration checks. The bi-directional RS-232 interface and the Windows ® 95/ 98/ NT/ 200/ ME/ XP compatible software can be use to control setup and retrieve stored events or analyze real time measurements. Included with the Extech 407355 personal noise dosimeter is an RS-232 cable, complete with 9 or 25 pin adaptor.

The Extech 407355 personal noise dosimeter ships complete with belt clip and clip-on 0.5 " microphone with 2.6ft cable, 4 AAA batteries, mini screwdriver and carrying case, software, and cables. For customers requiring multiple noise dosimeters, the Extech 407355 is available in a 5-pack which includes aN Extech 407766 94/ 114dB sound calibrator and hard plastic carrying case.

Applications for the Extech 407355 Personal Noise Dosimeter: 

Personal accumulated noise exposure measurement

Workplace noise assessment

OSHA and other regulatory agency compliances

Range 70 to 140dBA

Resolution 0.1dB

Display LCD 0.01-9999% 

Analog Output N/ A

Microphone 1/ 2 inch electret condenser with 31” cable

Data Logging 4500dB readings

Frequency Range N/ A

Sampling Rate N/ A

Dimensions 4.2 x 2.5 x 1.3” ( 106 x 64 x 34mm) 

Weight 8oz. ( 227g) incl.batteries

Weighting A

Response time Fast or Slow

Power Supply N/ A

Interface RS232

Alarm Output N/ A

Minimum Output N/ A

Approvals/ Warranty 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) 

High Level Detector/ Peak Flag 115dB / 140dB

Battery Life 34 hrs

Event Storage 5 surveys

Real Time Clock Yes