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Cirrus Research · Trojan · Noise monitoring station

Trojan2 Noise Nuisance Recorder

Current

Mains-powered noise nuisance recorder in a tamper-evident Peli case, deployed in complainants' homes by councils and housing associations. A Class 1 data-logging sound level meter inside records all weightings in 24-hour blocks, and the occupant starts and stops uncompressed audio recording with a wireless remote. Trojan B adds 1:1 and 1:3 octave bands; TrojanLITE is supplied with one remote.

Specifications verified on .

Type
Noise monitoring station
Class
Class 1
Channels
1
Octave bands
1/1 and 1/3
Connectivity
wireless two-button remote control, optional wired remote, USB (meter download)
Weight
2600 g
Battery life
8 h
Compare with other instrumentsAll noise monitoring stations

Specifications

As published by Cirrus Research. Fields the manufacturer does not publish are omitted rather than estimated.

Standards and class — Trojan2 Noise Nuisance Recorder
SpecificationValue
IEC 61672-1 classClass 1
StandardsIEC 61672:2013 class 1, IEC 61260 (Trojan B filters)
Pattern approvalsPTB (DIN EN 61672), optional
Measurement — Trojan2 Noise Nuisance Recorder
SpecificationValue
Channels1
Measurement range20 to 140 dB RMS, single range
Frequency weightingsA, C, Z
Time weightingsF, S, I
Simultaneous weightingsYes
ParametersLAeq, LCeq, LZeq, LCpeak, LApeak, LAIeq, LXYmax, L10, L90
Analysis — Trojan2 Noise Nuisance Recorder
SpecificationValue
Octave bands1/1 and 1/3
Audio recordingYes
Logging and data — Trojan2 Noise Nuisance Recorder
SpecificationValue
Shortest logging interval10 ms
Memory8 GB standard, expandable to 32 GB (default about 77 days of data and 17 h 15 min of audio)
Hardware — Trojan2 Noise Nuisance Recorder
SpecificationValue
Microphone1/2" on 1.5 m extension cable with mini tripod and windshield (model not stated)
Detachable preamplifierYes
Weather sensorsNo
Displaystatus LEDs on the case (meter display inside)
Battery4 x AA (back-up)
Battery life8 h
External power100 to 240 V AC adapter with 12 V 1.25 A DC converter; automatic restart after power failure
Weight2600 g
Dimensions (mm)296 x 212 x 96
Operating temperature (°C)-10 to 50
Connectivity and software — Trojan2 Noise Nuisance Recorder
SpecificationValue
Connectivitywireless two-button remote control, optional wired remote, USB (meter download)
Remote controlwireless start/stop remote; NoiseAid web application
SoftwareNoiseTools, NoiseAid

Variants

Variants of the Trojan2 Noise Nuisance Recorder as the manufacturer names them
VariantDifference
Trojan A (CK:199A/V2)Class 1 sound level meter without octave band filters
Trojan B (CK:199B/V2)Adds 1:1 and 1:3 octave band filters (IEC 61260)
TrojanLITESame recorder supplied with one remote control instead of two

Where this data comes from

Manufacturer documents used for this record
KindDocumentAccessed
Product pageTrojan2 Noise Nuisance Recorder
Product pageTrojanLITE Noise Nuisance Recorder
DatasheetTrojan datasheet (English)
ManualTrojan2 instrument handbook

Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.

Spec out of date? Tell us (reference cirrus-trojan2).

Verified owner reviews

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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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