--- title: "TSI SoundPro Noise Monitors | Aethair" description: "TSI Quest SoundPro SE/DL Class 1 and 2 sound level meters in the Aethair sensor catalog: 12 models with optional 1/1 and 1/3 octave analysis." url: https://aethair.io/sensors/tsi-noise-monitors/ --- Sensors · Noise Monitors # TSI SoundPro Noise Monitors TSI Quest SoundPro SE/DL Class 1 and Class 2 integrating sound level meters and real-time analyzers measure broadband SPL, Leq, Lavg, Lmax, Lmin, peak, and TWA/dose, with optional 1/1 and 1/3 octave-band analysis. SE = summary/session logging; DL adds time-history logging. 12 SKUs across Type 1/Type 2 and the octave-filter options. [Schedule a call](https://calendly.com/d/ctdd-mkr-v9v/aethair-demo-website) [Build a Configuration](https://aethair.io/build/?params=sound_spl,sound_leq,sound_lmax,sound_lmin,sound_lpeak,sound_lavg,sound_twa) At a glance **7** parameters **12** models [**Connects via Thiamis** RS-232 · ASCII](https://aethair.io/products/thiamis/) 3 standards limit what it measures - [MSHA noise MSHA Occupational Noise Exposure (30 CFR Part 62)](https://aethair.io/standards/msha_noise/) - [OSHA / NIOSH noise Occupational Noise Exposure (OSHA / NIOSH)](https://aethair.io/standards/occupational_noise/) - [WHO noise 2018 WHO Environmental Noise Guidelines for the European Region (2018)](https://aethair.io/standards/who_noise_2018/) Measures ## What the TSI SoundPro Measures 7 parameters, each linked to its page: the sensors, units, and standards behind it. [Sound Pressure Level (SPL) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) dB 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose dB](https://aethair.io/parameters/sound_twa/) [Connects via **Thiamis**](https://aethair.io/products/thiamis/) Wired interface [RS-232 ASCII](https://aethair.io/products/thiamis/#port-rs232) Models ## TSI SoundPro Models 12 models, each with what it measures and the ranges its datasheet gives. | Model | Description | Measures & specs | | - | - | - | | **SP-SE-1** | SoundPro SE Class 1 precision sound level meter with summary/session logging; broadband SPL, Leq, Lavg, Lmax, Lmin, peak, and TWA/dose, no octave filter. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL)](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq)](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax)](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin)](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak)](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg)](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-SE-1-1/1** | SoundPro SE Class 1 precision sound level meter with summary/session logging; adds real-time 1/1 octave analysis (11 bands, 16 Hz–16 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB); 1/1 octave filters per IEC 61260 / ANSI S1.11 (11 bands, 16 Hz–16 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-SE-1-1/3** | SoundPro SE Class 1 precision sound level meter with summary/session logging; adds real-time 1/1 and 1/3 octave analysis (33 bands, 12.5 Hz–20 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB); 1/1 & 1/3 octave filters per IEC 61260 / ANSI S1.11 (33 bands, 12.5 Hz–20 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-SE-2** | SoundPro SE Class 2 general-purpose sound level meter with summary/session logging; broadband SPL, Leq, Lavg, Lmax, Lmin, peak, and TWA/dose, no octave filter. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL)](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq)](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax)](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin)](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak)](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg)](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-SE-2-1/1** | SoundPro SE Class 2 general-purpose sound level meter with summary/session logging; adds real-time 1/1 octave analysis (11 bands, 16 Hz–16 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB); 1/1 octave filters per IEC 61260 / ANSI S1.11 (11 bands, 16 Hz–16 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-SE-2-1/3** | SoundPro SE Class 2 general-purpose sound level meter with summary/session logging; adds real-time 1/1 and 1/3 octave analysis (33 bands, 12.5 Hz–20 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB); 1/1 & 1/3 octave filters per IEC 61260 / ANSI S1.11 (33 bands, 12.5 Hz–20 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-1** | SoundPro DL Class 1 precision sound level meter with time-history data logging (1 s–60 min intervals to SD card); broadband SPL, Leq, Lavg, Lmax, Lmin, peak, and TWA/dose, no octave filter. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL)](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq)](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax)](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin)](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak)](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg)](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-1-1/1** | SoundPro DL Class 1 precision sound level meter with time-history data logging (1 s–60 min intervals to SD card); adds real-time 1/1 octave analysis (11 bands, 16 Hz–16 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB); 1/1 octave filters per IEC 61260 / ANSI S1.11 (11 bands, 16 Hz–16 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-1-1/3** | SoundPro DL Class 1 precision sound level meter with time-history data logging (1 s–60 min intervals to SD card); adds real-time 1/1 and 1/3 octave analysis (33 bands, 12.5 Hz–20 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 1 / ANSI S1.4 Type 1 precision; ½" BK4936 free-field microphone (±1 dB); 1/1 & 1/3 octave filters per IEC 61260 / ANSI S1.11 (33 bands, 12.5 Hz–20 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-2** | SoundPro DL Class 2 general-purpose sound level meter with time-history data logging (1 s–60 min intervals to SD card); broadband SPL, Leq, Lavg, Lmax, Lmin, peak, and TWA/dose, no octave filter. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL)](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq)](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax)](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin)](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak)](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg)](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-2-1/1** | SoundPro DL Class 2 general-purpose sound level meter with time-history data logging (1 s–60 min intervals to SD card); adds real-time 1/1 octave analysis (11 bands, 16 Hz–16 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB); 1/1 octave filters per IEC 61260 / ANSI S1.11 (11 bands, 16 Hz–16 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | | **SP-DL-2-1/3** | SoundPro DL Class 2 general-purpose sound level meter with time-history data logging (1 s–60 min intervals to SD card); adds real-time 1/1 and 1/3 octave analysis (33 bands, 12.5 Hz–20 kHz) on SPL, Leq, Lmax, Lmin, peak, and Lavg. | **Method:** IEC 61672-1 Class 2 / ANSI S1.4 Type 2 general-purpose; ½" QE7052 prepolarized microphone (±2 dB); 1/1 & 1/3 octave filters per IEC 61260 / ANSI S1.11 (33 bands, 12.5 Hz–20 kHz) [datasheet](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series)[Sound Pressure Level (SPL) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_spl/) [Equivalent Continuous Level (Leq) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_leq/) [Max Level (Lmax) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmax/) [Min Level (Lmin) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lmin/) [Peak Level (Lpeak) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lpeak/) [Average Level (Lavg) 1/1 octave, 1/3 octave](https://aethair.io/parameters/sound_lavg/) [TWA / Noise Dose](https://aethair.io/parameters/sound_twa/) | Standards ## Standards for What It Measures Standards that set limits on the parameters it reports, plus any method standard the instrument is built to. [MSHA noise MSHA Occupational Noise Exposure (30 CFR Part 62) 2 of its parameters](https://aethair.io/standards/msha_noise/) [OSHA / NIOSH noise Occupational Noise Exposure (OSHA / NIOSH) 2 of its parameters](https://aethair.io/standards/occupational_noise/) [WHO noise 2018 WHO Environmental Noise Guidelines for the European Region (2018) 1 of its parameters](https://aethair.io/standards/who_noise_2018/) Built to [IEC 61672: sound level meters (Class 1/2)](https://aethair.io/standards/iec_61672/) [IEC 61260-1: octave-band and fractional-octave-band filters](https://aethair.io/standards/iec_61260/) Solutions ## Where the TSI SoundPro Is Used Solutions whose recommended configuration uses this instrument or whose standards it is built to, followed by solutions whose core panel it partly measures. ### [Noise Monitoring](https://aethair.io/solutions/noise/) Environmental and occupational sound levels On the platform ## What the TSI SoundPro Gets From Aethair Connected through Thiamis, its readings arrive in the same Environet account as Aethair's own monitors. ### [Live data and alerts](https://aethair.io/platform/environet/) [Environet](https://aethair.io/platform/environet/) shows the instrument live and alerts the people you choose by email, SMS, and webhook, at the thresholds you set. [Noesis](https://aethair.io/platform/noesis/) sets up a dashboard, a report, or an alert from a plain-text request. ### [Compliance reports](https://aethair.io/platform/reports/) [Aethair Reports](https://aethair.io/platform/reports/) produces scheduled or on-demand reports from the instrument's readings, as a PDF or secure link. Templates cover Aethair Blue, WELL v2, cabin air (ISO 23875), and the CMS-2567 healthcare codebook (ASHRAE 170), or you can report against custom limits such as OSHA PELs, NAAQS, EPA guidance, or your own program limits. ### [Dashboards and the app](https://aethair.io/platform/dashboards/) Environet dashboards and the [Aethair App](https://aethair.io/platform/app/) show the instrument's readings just like any Aethair device. The occupant-facing [Aethair Dashboards](https://aethair.io/platform/dashboards/) status display is built around Aethair IAQ and Aethair PRO. Similar ## Other Noise Monitors ### [Cirrus Research](https://aethair.io/sensors/cirrus-research-noise-monitors/) [Noise Monitors](https://aethair.io/sensors/cirrus-research-noise-monitors/) [Cirrus Research Optimus and Optimus+ handheld sound level meters are integrating, data-logging…](https://aethair.io/sensors/cirrus-research-noise-monitors/) Questions ## TSI SoundPro FAQ What is the difference between the SoundPro SE and DL models? SE models store summary/session data only; DL models add time-history data logging at selectable 1-second to 60-minute intervals to the SD card, capturing Lmax, Lmin, peak, Leq/Lavg (and Ln) over time. All SoundPro models store summary session data. What do the Type 1 and Type 2 designations mean? Type/Class 1 are precision instruments (IEC 61672-1 Class 1 / ANSI S1.4 Type 1, ±1 dB) supplied with the ½" BK4936 free-field microphone; Type/Class 2 are general-purpose (Class 2, ±2 dB) with the ½" QE7052 prepolarized microphone. Both measure the same quantities; Type 1 has tighter accuracy and is used for legal metrology and environmental work. What do the 1/1 and 1/3 octave options add? The base SLM (SP-SE/DL-1 or -2) measures broadband only. A "-1/1" model adds real-time 1/1 octave analysis (11 bands, 16 Hz–16 kHz); a "-1/3" model adds both 1/1 and 1/3 octave analysis (33 bands, 12.5 Hz–20 kHz), per IEC 61260 / ANSI S1.11. Octave bands are produced for SPL, Leq, Lmax, Lmin, Lpeak, and Lavg, not TWA. Which noise metrics does the Thiamis integration record? The driver polls the broadband SPL, Leq, Lavg, Lmin, Lmax, Lpeak, and TWA (plus their 1/1 or 1/3 octave bands on filter-equipped units). The meter itself also computes SEL, Ln percentiles, noise dose/projected dose, Takt-Maximal, LDN, CNEL, and PTWA, but the integration does not currently request those. What are the "two virtual sound level meters"? Each SoundPro runs two independent virtual meters at once from a single microphone, so it can capture, for example, A-weighted and C-weighted results (or two different response/threshold settings) concurrently. How does the integration connect to the SoundPro? Over the meter’s RS-232 serial port at 4800 baud, 8-N-1. The Thiamis driver issues ASCII commands (SPL, LEQ, LAVG, LMIN, LMAX, LPK, TWA, plus per-band filter queries in 1/1 or 1/3 octave mode) and parses the "…=value dB" responses. Sources: [tsi.com](https://tsi.com/products/noise-dosimeters-and-sound-level-meters/choosing-the-right-sound-and-noise-level-meter/quest-soundpro-sound-level-meters-se-dl-series) · [tsi.com](https://tsi.com/getmedia/e42023ec-9c51-4dde-924d-b852d73ffb9f/QUEST-SoundPro-Sound-Level-Meters-SE_DL_A4_5002177_RevC_Web?ext=.pdf)