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Larson Davis · Spartan Series 821 · Handheld sound level meter

Spartan 821IH

Current

Occupational noise sound level meter on the Series 821 platform with a colour touch screen, microSD storage, Bluetooth, USB-C, wireless charging and built-in noise dose metrics. Class 1 (821IH) and Class 2 (721IH) versions; 1/1 and 1/3 octave analysis on -D models. Named by the manufacturer as the replacement for the SoundTrack LxT.

Launched 2023. Replaced the SoundTrack LxT. Specifications verified on .

Type
Handheld sound level meter
Class
Class 1
Channels
1
Octave bands
1/1 and 1/3
Connectivity
USB-C (USB 2.0), Bluetooth
Weight
382.5 g
Compare with other instrumentsAll handheld sound level meters

Specifications

As published by Larson Davis. Fields the manufacturer does not publish are omitted rather than estimated.

Standards and class — Spartan 821IH
SpecificationValue
IEC 61672-1 classClass 1
StandardsIEC 61672-1:2013 class 1, ANSI S1.4-2014 class 1, IEC 61252:2017, ANSI S1.25-1991
Measurement — Spartan 821IH
SpecificationValue
Channels1
Measurement range17 to 140 dB(A) typical dynamic range
Frequency weightingsA, C, Z
Time weightingsF, S, I
ParametersLeq, Lmax, Lmin, Lpeak, Ln (6 values), Dose, Projected Dose, TWA, Projected TWA, LAIeq
DosimetryYes
Exchange rates3 dB, 5 dB, custom 3 to 6 dB
Analysis — Spartan 821IH
SpecificationValue
Octave bands1/1 and 1/3
Octave band filter class6.3 Hz to 20 kHz (option X21-OB3 / -D models)
Logging and data — Spartan 821IH
SpecificationValue
Shortest logging interval1 s (time history); measurement history 1 min to 6 h
Memory8 GB industrial microSD standard, up to 256 GB
Hardware — Spartan 821IH
SpecificationValue
Microphone1/2" prepolarised free-field 377B02 (821); 375A04 (721); preamplifier PRM821 or PRM721
Detachable preamplifierYes
Displaymulti-colour back-lit LCD touch screen
Batteryinternal rechargeable; charging by USB-C (5 V, 3 A) or Qi wireless pad
Weight382.5 g
Dimensions (mm)257.2 x 82.6 x 32.7 (with microphone and preamplifier); body 203.2 x 82.6 x 32.7
Operating temperature (°C)-20 to 60
Connectivity and software — Spartan 821IH
SpecificationValue
ConnectivityUSB-C (USB 2.0), Bluetooth
Remote controlG4 LD Utility; LD Atlas app
SoftwareG4 LD Utility, LD Atlas

Variants

Variants of the Spartan 821IH as the manufacturer names them
VariantDifference
821IHClass 1, 377B02 microphone and PRM821 preamplifier
821IH-DClass 1 with 1/1 and 1/3 octave band analysis
721IHClass 2, 375A04 microphone and PRM721 preamplifier
721IH-DClass 2 with 1/1 and 1/3 octave band analysis
821IH-QPRfirearms acoustic analysis configuration

Where this data comes from

Manufacturer documents used for this record
KindDocumentAccessed
Product pageSpartan Sound Level Meter Series 821
ManualSpartan 821/721 Sound Level Meter Reference Manual I821.03(E)
Press releaseProduct and support announcements (821IH released July 2023)

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-spartan-821ih).

Verified owner reviews

Reviews from people who own and use this instrument, each checked against a serial number by a person.

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Known issues and firmware notes

Hardware and firmware problems reported by owners, with the firmware version concerned and any manufacturer response.

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Feature requests

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