Larson Davis · LxT · Handheld sound level meter
SoundTrack LxT
DiscontinuedSingle-channel sound level meter for workplace and general noise surveys, in Class 1 (LxT1) and Class 2 (LxT2) versions, with a 160 x 240 backlit LCD, 2 GB memory, AA batteries and USB. Optional firmware added octave filters, logging and community noise metrics; the SoundExpert LxT shared the hardware. Discontinued; the Spartan 821IH is the named replacement.
Specifications verified on .
- Type
- Handheld sound level meter
- Class
- Class 1
- Channels
- 1
- Octave bands
- 1/1 and 1/3
- Connectivity
- USB 2.0, auxiliary USB for storage, AC/DC output and headset jack
- Weight
- 513 g
- Battery life
- 16 h
Specifications
As published by Larson Davis. Fields the manufacturer does not publish are omitted rather than estimated.
| Specification | Value |
|---|---|
| IEC 61672-1 class | Class 1 |
| Standards | IEC 61672-1:2013 class 1 (LxT1) or class 2 (LxT2), ANSI S1.4-2014 class 1 or class 2, ANSI S1.43-1997 (R2002), IEC 61260:2001 class 1 / ANSI S1.11-2004 class 1 (octave filters, option), IEC 60651:2001, IEC 60804:2000, ISO 9612:2009 measurement strategies supported |
| Specification | Value |
|---|---|
| Channels | 1 |
| Measurement range | 17 to 118 dB(A), 19 to 118 dB(C), 24 to 118 dB(Z) typical dynamic range (single range; LxT1 with 377B02) |
| Frequency range | 1/1 octave 8 Hz to 16 kHz; 1/3 octave 6.3 Hz to 20 kHz (filter options) |
| Frequency weightings | A, C, Z |
| Time weightings | F, S, I |
| Parameters | SPL, Leq, Lmax, Lmin, SEL, Lpeak, Lpeak(max), Ln (6 values L0.01 to L99.99), Lavg, TWA, Dose, ProjDose, Lep,d, E, E8, E40, SEA |
| Dosimetry | Yes |
| Specification | Value |
|---|---|
| Octave bands | 1/1 and 1/3 |
| Octave band filter class | options LXT-OB1 (1/1) and LXT-OB3 (1/3 and 1/1) |
| Specification | Value |
|---|---|
| Shortest logging interval | 100 ms (option LXT-HSLOG); 1 s with LXT-LOG |
| Memory | 2 GB |
| Specification | Value |
|---|---|
| Microphone | 1/2" 377B02 free-field 50 mV/Pa (LxT1) or 375A04 (LxT2); optional 377C20 random-incidence; preamplifier PRMLXT1 or PRMLXT2C; drives up to 61 m extension cable |
| Detachable preamplifier | Yes |
| Display | 160 x 240 pixel backlit LCD |
| Battery | 4 x AA (alkaline, NiMH or 1.5 V lithium); PSA029 mains supply; BAT015 external D-cell holder |
| Battery life | 16 h |
| External power | USB/power port; optional BAT015 external D-cell pack (over 13 days) |
| Weight | 513 g |
| Dimensions | 290 x 71 x 41 overall (body 224 mm long) |
| Operating temperature (°C) | -10 to 50 (sensitivity within +/-0.5 dB); storage -30 to 60 |
| Specification | Value |
|---|---|
| Connectivity | USB 2.0, auxiliary USB for storage, AC/DC output and headset jack |
| Software | G4 LD Utility (SWW-SLM-UTILG4), Blaze (SWW-BLAZE-LXT), DNA |
| Latest firmware | 2.404 (reference manual revision R) |
Variants
| Variant | Difference |
|---|---|
| LxT1 | Class 1 with PRMLXT1 preamplifier and 377B02 microphone |
| LxT2 | Class 2 with PRMLXT2C preamplifier and 375A04 microphone |
| SoundExpert LxT | environmental configuration on the same hardware |
Where this data comes from
| Kind | Document | Accessed |
|---|---|---|
| Product page | SoundTrack LxT Workplace Noise Sound Level Meter (marked discontinued) | |
| Manual | SoundTrack LxT and SoundExpert LxT Reference Manual, firmware 2.404 | |
| Datasheet | SoundExpert LxT brochure MD-0436 Rev A (same hardware as SoundTrack LxT) |
Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.
Spec out of date? Tell us (reference larson-davis-soundtrack-lxt).
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Read next
- How to choose a sound level meter · Class 1 vs class 2, integrating vs non-integrating, parameters by application, options and licences, calibration.
- Class 1 vs class 2 sound level meters · IEC 61672-1 tolerances, what the classes do and do not say, and where each is typically required.
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