Sound Examiner SE-401-IS Type 1 by TSI Quest - Sound Level Meter

Intrinsically Safe Area Monitoring Datalogging
Sound Level Meter Manufacturer: TSI Quest
Sound Examiner SE-401-IS Type 1 by TSI Quest - Sound Level Meter
Sound Examiner SE-401-IS Type 1 by TSI Quest - Sound Level Meter
Sound Examiner SE-401-IS Type 1 by TSI Quest - Sound Level Meter

The TSI Quest Sound Examiner SE-401-IS is an intrinsically safe handheld sound level meter rated for use in explosive and flammable atmospheres, meeting ANSI S1.4 Type 2 and IEC 61672-1 Class 2 standards with a 30–140 dB measurement range and a Type 1 microphone. It supports real-time data logging of SPL, Leq, and peak levels with selectable frequency weighting (A, C, Z) and response times, and data transfers via USB to TSI's Detection Management Software for reporting and OSHA compliance.

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$115.00
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$330.00
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What is the TSI Quest Sound Examiner SE-401-IS used for?
The SE-401-IS is a Type 1 integrating sound level meter with intrinsic safety certification, used for precision occupational noise surveys in classified hazardous locations (oil and gas, chemical plants, refineries) where standard SLMs cannot be used. It measures Leq, Lmax, Lpk, TWA, and dose — covering all OSHA 1910.95 occupational noise compliance requirements.
What makes the SE-401-IS unique compared to other Type 1 SLMs?
The SE-401-IS combines Type 1 precision accuracy with intrinsic safety certification (CSA, ATEX, IECEx) for Class I, Div 1/Zone 0 classified hazardous areas. Most Type 1 SLMs are not intrinsically safe. For noise compliance surveys in petrochemical, refinery, or mining environments where Class I hazardous classifications apply, the SE-401-IS is often the only compliant choice.
Does the SE-401-IS include octave band analysis?
The SE-401-IS is a Type 1 integrating SLM. Confirm octave band capability for your specific model with RAECO Rents at 866-736-8347 before ordering, as octave band options vary.
What data does the SE-401-IS record?
The SE-401-IS records time-history data at user-configurable intervals along with Leq, Lmax, Lpk, TWA, and dose values. Data is downloaded via TSI's DMS software for report generation.
Is the SE-401-IS suitable for MSHA mining applications?
Yes. The SE-401-IS's IS certification makes it suitable for underground mining environments where conventional SLMs are not permitted.
What is the SE-401-IS rental rate from RAECO Rents?
Contact RAECO Rents at 866-736-8347 for current SE-401-IS daily and weekly rental pricing. Rental includes the SLM, microphone, windscreen, calibrator, DMS software, and case.

Exposure Hazards This Equipment Detects

Noise (dBA)

CAS: N/A
Learn More
Updated on March 09, 2026
PEL TWA
90 dBA
REL TWA
85 dBA
TLV TWA
85 dBA

Features & Capabilities

Calibration Certificate Available: ✓ Yes
Datalogging: ✓ Yes
Intrinsically Safe: ✓ Yes
Monitoring Scope: Area Monitoring

Equipment Specifications

  • Intrinsically Safe(Red housing); approved for use in hazardous environments
  • Microphone Type: Class/Type 1 Precision
  • Measurement Range: 30 to 140 dBA overall, with 110 dBA total dynamic range
  • Maximum Peak Level: 143 dBA (sampled peak)
  • Measured Parameters: SPL, Lmax, Lmin, Peak, Leq/Lavg, Elapsed Time
  • Frequency Weighting: A, C, Z
  • Response Time: Fast and Slow
  • Exchange Rates: Selectable 3, 4, or 5 dB
  • Battery: 1500 mAh rechargeable lithium polymer (Intrinsic Safe model); 8-hour runtime typical
  • Display: Backlit LCD screen with intuitive menu and multi-parameter view
  • Dimensions: 11.2" x 2.8" x 1.3"
  • Weight: 14.5 oz (with mic and preamp)
  • Memory: 2 MB internal (stores ~34 days of 1-minute data logging)
  • Communications: USB interface (mini USB port)
  • Conformance Standards: IEC 61672-1 (2002), ANSI S1.43-1997 (R2007)

Kit Contents

SE-401-IS Intrinsically Safe Sound Examiner, AC-300 Calibrator & ½” Microphone Adapter, Windscreen, A/C Power Cable with Mini-USB Connection, Mini USB Cable, Wrist Strap, (1) Spare 9v Battery, Phillips Head Screwdriver for AC-300 Battery Replacement, Calibration Certificates (Emailed), Flash Drive with Software and Manuals

Manufacturer Resources

Documents

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