Extech SL355 SL 355 Personal Noise Dosimeter Data Logger 

The Extech SL355 is designed to measure total sound levels and exposure for an 8 hour duration. 

• Perform IEC and OSHA Noise accumulation survey
• 1 use defined setup for measurement
• Adjustable Threshold, Exchange Rate, and Criterion Level
• Applications include accumulated personal noise exposure measurements, Workplace noise assessments, OSHA & other regulatory compliances
• Measure frequency weighted exposure for noise & peak sound levels simultaneously
• Datalog 12,000 maximum readings as a sound-level meter w/ sampling time between 1 sec. & 1 hour

• Sound level testing mode displays normal sound levels, (Leq) time averaged sound levels, peak, &  (SEL) sound exposure levels
• Optional 94 / 114 deciBel calibrator performs before & after calibration check to ANSI standard
• Store 20 maximum dosimeter surveys
  • Start / Stop Time
  • Percent Dose
  • Percent Dose projected over 8 hr. period
  • Peak level used in Dosimeter mode
• USB interface w/ Windows XP / Vista / 7 compatible software for controlling setup & retrieval of stored events, analyze your real time data
• Includes
  • Belt clip
  • Clip on 0.5 inch microphone w/ 2.6 foot (0.8 meter) cable
  • Three AAA size batteries
  • Mini screwdriver
  • Software
  • USB cable
  • Carrying case