SoundPro® Sound Level Meters

Measure, document and display noise exposures to support hearing conservation. 1/1 and 1/3 octave band analysis options available

Measure, document and display noise exposures to support hearing conservation. 1/1 and 1/3 octave band analysis options available


Product Details

TSI Quest™ SoundPro™ SE-DL Series Sound Level Meters come in a variety of models to meet your sound measurement needs. Several models feature octave band analysis, giving you the ability to conduct environmental noise monitoring and noise control evaluation.

Instruments are available in Class/Type 1 and Class/Type 2 models. A large screen display allows for real-time frequency analysis and data-storing capabilities make it easy to post-process and evaluate workplace noise levels.



  • ANSI and IEC standards compliant
  • Available in Class/Type 1 Precisions or Class/Type 2 General Purpose models
  • Two “virtual” sound level meters running simultaneously
  • Concurrent A-weighted and C-weighted measurements
  • Programmable and level-triggered start and stop
  • A, C and Z (flat) frequency weighting
  • Fast, slow, and IEC impulse time response
  • Selectable thresholds 10 dB – 140 dB
  • 3, 4, 5, 6 dB exchange rates
  • Luminescent keypad and backlit display
  • SD memory card slot
  • USB communications port and serial RS-232 output
  • Display adjustable among multiple languages
  • Time history data logging with 1 second to 60 minute intervals*
  • Back erase function
  • Noise dose calculation/dosimetry function
  • Detection Management Software | Offers a variety of functionality allowing the ability to intuitively interpret measurements and generate reports for export and sharing of results.

*DL only


  • Occupational noise evaluations
  • Environmental noise assessments
  • General sound and frequency analysis
  • Vehicle noise evaluations
  • Building acoustics
  • HVAC testing per NEBB


Display Type Transflective 128 X 64 Dot Matrix LCD with additional backlighting
Conformance to Standards
EMC Requirements EN/IEC 61326-1(2005) Group 1, Class B Emissions/ Industrial Location Immunity. CFR:47 (2008) Part 15 – Meets FCC Class B Emissions
Performance Requirements EN/IEC 61672-1(2002), ANSI S1.4 (R2006), ANSI S1.43(R2007), EN/IEC 61260 (2001), ANSI S1.11 (R2009), (also meets requirements of former standards IEC 60651 and 60804) IEC60268-16 (2003) with Speech Intelligibility option
Safety Requirements IEC61010-1 (2010)
Certifications CE Mark, WEEE, RoHS
Physical Characteristics
Size 3.1”W x 11.1”H x 1.6” thick (with preamp & microphone); 7.9 cm x 28.2 cm x 4.1 cm
Weight 0.54 kg or 1.2 lbs. (including batteries)
Temperature Operating -10ºC to +50ºC (<± 0.5 dB effect); Storage -25ºC to +70ºC
Humidity 10% to 90% RH, non-condensing
Parameters SPL, LMax, LMin, LPk(peak), LEQ/LAVG, SEL, LN (selectable L1 to L99), TWA, Taktm, Taktmx, Dose, PDose, Exposure (Pa2H/Pa2S), LDN, CNEL, PTWA, LC-A
Ranges 120 dB+ (A-weighted) total dynamic measurement range over 8 individual ranges of 90 dB (A-weighted) each (with filters – 80 dB ranges); overall measurement range 0 dB to 140 dB
Frequency Weighting A, C, Z and F (Flat)
Electrical Characteristics
Batteries 4 disposable AA alkaline cells, typically >10 hours continuous use without backlight (SLM only without filters activated)
External DC Power Input 100 – 240 VAC, 47-63 Hz transformed to 9 VDC
Logging and Storage
Logging DL Models only. LMax, LMin, LPk(peak), LN, LEQ/LAVG may be logged at 11 selectable intervals from one second to 60 minutes to the included SD (secure digital) memory card. Use TSI Quest Detection Management Software DMS to interpret data files
Summary Data All session/study data is stored to the SD card. Summary data may be interpreted with TSI Quest Detection Management Software DMS, or exported to spreadsheet or XML file with an available utility
Memory Accepts 32 MB to 32 GB SD memory cards. Card included with all models and stores multiple summary sessions/studies and for setup storage (Contact factory for preferred SD card manufacturers)
Ports and Connections
Power Jack External power supply 9-16 VDC
USB Conforms to USB 2.0, mini-USB connector