Sound Examiner SE-402-IS Type 2 by TSI Quest - Datalogging Integrating Sound Level Meter
Sound Examiner SE-402-IS Type 2 by TSI Quest - Datalogging Integrating Sound Level Meter
The TSI Quest Sound Examiner SE-402-IS is an intrinsically safe handheld sound level meter rated for use in explosive and flammable atmospheres, Type 2 microphone (ANSI S1.4 / IEC 61672-1 Class 2) integrating datalogging with a 30–140 dB measurement range and a 10+ hour battery life, designed for accurate noise measurement in occupational and environmental settings. It calculates and datalogs average SPL (Leq), maximum, minimum, and peak values over the run period, making it a reliable tool for hearing conservation programs and OSHA compliance assessments.
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Rent for flexible short-term use or purchase to own
Rental Rates
Daily
$115.00
Weekly
$330.00
Monthly
Contact for pricing
Reference rates only. You get the best rate calculation - actual price based on your selected rental dates.
What is the TSI Quest SE-402-IS used for?
The SE-402-IS is an intrinsically safe Type 2 (Class 2) integrating sound level meter for noise measurement in explosive or flammable atmospheres — refineries, chemical plants, oil and gas facilities, and other hazardous classified locations. It measures Leq, Lmax, Lpk, and datalogs for OSHA 1910.95 workplace noise compliance and hearing conservation programs.
What does "intrinsically safe" mean, and when do I actually need it?
Intrinsically safe means the instrument is designed and certified so it cannot generate enough electrical or thermal energy to ignite a surrounding explosive atmosphere. You need it specifically when testing in a classified hazardous location (e.g. ATEX/IECEx or Class I Division 1/2 areas) — standard industrial, commercial, or construction sites do not require it.
SE-402-IS vs. the standard SE-402 — which do I need?
Both are Type 2 (Class 2) integrating sound level meters with the same 30–140 dB range and measurement capability. The SE-402-IS adds intrinsically safe certification for hazardous classified locations. If your survey is in a standard (non-classified) environment, the regular SE-402 provides identical measurement accuracy at lower cost.
SE-402-IS (Type 2) vs. SE-401-IS (Type 1) — which accuracy class do I need?
Both are intrinsically safe, but the SE-401-IS is Type 1 (higher precision) while the SE-402-IS is Type 2. OSHA 1910.95 and 1926.52 explicitly accept Type 2 for occupational noise compliance. Type 1 is needed only when a community noise ordinance, legal submission, or precision engineering study specifically requires that higher accuracy class.
Does the SE-402-IS support octave band frequency analysis?
No — it's a standard integrating SLM without octave band capability. For frequency-resolved (1/1 or 1/3 octave) measurements in a hazardous location, contact RAECO Rents to discuss available intrinsically safe options.
How does the SE-402-IS transfer data for reporting?
It transfers logged data via USB to TSI Detection Management Software (DMS) for report generation and time-history graphing, the same workflow as the standard SE-402.
What's included in the SE-402-IS rental kit?
The SLM, calibrator with microphone adapter, windscreen, USB cable, spare 9V battery, calibration certificates (emailed), and a flash drive with software and manuals. Call 866-736-8347 for current daily and weekly rates.
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
| Type/Class Rating: | Type 2 (ANSI S1.4 Type 2, IEC 61672-1 Class 2) |
| Measurement Range: | 30-140 dB |
| Frequency Range: | 20 Hz to 20 kHz |
| Frequency Weighting: | A, C, Z |
| Time Weighting: | Fast, Slow |
| Exchange Rate: | 3 dB, 4 dB, 5 dB |
| Octave Band Filters: | Not available on this model |
| Dynamic Range: | 110 dB total dynamic range |
| Audio Recording: | Not available on this model |
| Data Logging Interval: | 1-minute intervals |
| Data Storage Capacity: | 2 MB (34 days at 1-minute logging) |
| Battery Run Time: | 8 hours minimum |
| Compliance Standards: | ANSI S1.4 Type 2, IEC 61672-1 Class 2, ANSI S1.43, IEC 61252 |
Kit Contents
Manufacturer Resources
Documents
User manuals, safety guides, and technical documentation from the manufacturer:
Videos
Product demonstrations and instructional videos from the manufacturer:
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