Extech SL355 Personal Noise Dosimeter/ Datalogger

DISCONTINUED ITEM-Recommended Replacement: Extech SL400 Personal Noise Dosimeter with USB Interface

The Extech SL355 is a compact, lightweight dosimeter designed to test noise exposure and provide noise surveys for compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards. Featuring a USB interface and Windows-compatible software to control setup and retrieve stored events or analyze measurements, this dosimeter provides adjustable Criterion Level, Exchange Rate, and Threshold, and can measure frequency weighted noise exposure and peak sound level simultaneously. Comes with belt clip and clip-on 0.5 in. microphone with 2.6 ft. (0.8-meter) cable, 3 AAA batteries, mini screwdriver and carrying case, PC software, USB cable, user manual.

The SL355 Sound Level Meter (SLM) displays real-time sound pressure level (SPL) readings along with LEQ, SEL, and elapsed time as a typical type 2 SLM would. The SLM has selectable measurement ranges: 60 to 130 & 70 to 140dB, ‘A’ and ‘C’ frequency weightings, Linear ‘Z’, and ‘C’ Peak weightings, Fast & Slow response time settings, and an adjustable energy exchange rate (Q).

• Perform OSHA and IEC Noise accumulation surveys
• One user-defined measurement setup
• Adjustable Criterion Level, Exchange Rate, and Threshold
• Measures frequency weighted noise exposure and peak sound level simultaneously
• Datalogs up to 12,000 readings when used as a sound level meter with sampling times between 1sec and 1hr
• In sound level mode, meter displays sound level, time-averaged sound level (Leq), peak, and sound exposure level (SEL)
• Stores up to 20 dosimeter surveys including Start/Stop Time, %Dose, %Dose projected for an 8 hour period, and peak level when used in the Dosimeter mode
• Optional 94/114dB calibrator to perform “before” and “after” calibration checks per ANSI standards
• UBS Interface. Includes Windows® compatible software to control setup and retrieve/analyze stored data.
• Complete with belt clip and clip-on 0.5″ microphone with 2.6ft (0.8m) cable, 3 AAA batteries, mini screwdriver and carrying case, PC software, and USB cable

• Personal accumulated noise exposure measurement
• workplace noise assessment
• OSHA and other regulatory agency compliances

• Standards:
  -IEC61252 ,ANSI S1.25(1992) for dose and sound exposure meters
  -IEC 60651-1979 Type 2 for sound level meters
  -ANSI S1.4-1983 Type S (1) for sound level meters
• Ranges:
  60 – 130 dB / 70 to 140dB (A/C Weighting)
  60 to 130dB / 93 to 133dB (C or Z (Linear) Peak)
  70 to 140dB / 103 to 143dB (C or Z (Linear) Peak)
• Digital Display: LCD 0.01-9999%
• Criterion Level: 80, 84, 85, or 90dB
• Exchange Rate: 3, 4, 5 or 6 dB
• Threshold Level: 70 to 90 (1dB steps)
• High Level Detector/Peak Flag: 115dB, 130dB and 140dB
• Response Rate: Fast or Slow
• Measurement Duration:
  5, 10, 15, or 30 minutes
  1, 2, 4, 8, 12, or 24 hours
• Microphone: 1/2 inch electret condenser with 31” cable
• Battery Life: >35 hrs
• Event Storage: 20 surveys
• USB Interface: yes
• Real time clock/calendar: yes
• Dimensions/Weight: 3.8 x 2 x 1.4” (97 x 51 x 35mm) 4.2oz. (120g) incl.batteries

• Extech SL355 Datasheet.pdf