Noise Nuisance Recorder Kit
Providing a reliable and efficient way to monitor and address noise complaints. The Larson Davis Noise Nuisance Kit is designed for ease of use, allowing environmental health officers to capture...
Key Product Features
Model: 821
Colour Touch Screen Display
Class 1 Certified Sound Level Meter
Accessible Hand Trigger
1/1 & 1/3 Octaves
Wireless Charging
30 Second Pre-Trigger
40 Hr Battery Life
32-bit High Quality Sound Recording
Data Logging 100 ms to 1 h
Environmental Mode
Free G4 Utility Reporting Software
Atlas App iPhone or Android
Automatic Calibration
Experience hassle-free calibration with the fully automated system. Simply insert the microphone, and the meter takes care of the rest, adjusting, calibrating, and logging each calibration interval. Stay confident with a complete calibration history, effortlessly maintained for you.
Effortless Operation – Here’s Why!
Effortlessly navigate with the intuitive colour touchscreen – preloaded with essential features and zero complicated settings. A crisp, responsive display with USB-C & wireless charging. A true smartphone like device.
G4 Utility Software
The G4 LD Utility is free software for all compatible Larson Davis meters, enabling you to connect, control, and view data from your device.
Organise files by project, view data in graphs or spreadsheets, and export reports.
Analyse multiple parameters, visualise heat maps, and, for meters with sound recording, play synchronised audio and edit data directly from the graph.
Easy Fast & Ready Reports
Generate professional reports effortlessly with G4 Software. Its intuitive interface streamlines the reporting process, allowing you to create comprehensive PDF reports in just a few clicks. Whether you're analysing noise data, vibration levels, or environmental metrics, G4 makes it easy to present your findings clearly and professionally – saving you time and ensuring accuracy.
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Atlas™ – Mobile App
Your smartphone can now become the keypad and display for the SoundExpert via Bluetooth.
- Manage instrument setups
- Run and stop measurements
- View data except 1/1 and 1/3 octave data
- Manage Wi-Fi connections
- Calibrate and check calibration
- View files
- Schedule measurements
Precision Noise Monitoring with Larson Davis – Record, Report, Resolve
Designed to capture and log nuisance noise with precision, this recorder provides clear, time-stamped evidence to support enforcement and dispute resolution.
With high-quality data storage at a budget-friendly price, you get the accuracy you need without breaking the bank. Simplify noise monitoring and take control of your investigations today.
Accessibility Friendly Hand Trigger
With free, license-free software included, you can quickly get up and running without extra costs or complex setup. The kit's wireless charging capabilities and inclusive, multi-coloured hand switch are all about flexibility, ensuring the device is always ready and accessible for everyone on your team.
Compact, Discreet, and Ready to Deploy
Deploying the Larson Davis Noise Nuisance Recorder is a straightforward process, thanks to its compact and discreet design. It arrives in one convenient, ready-to-use box, eliminating the need for complex setup or technical expertise. Simply place the pre-configured kit in situ and start monitoring quickly and easily.
The automatic calibration feature is a huge advantage as it eliminates the potential for human error and guarantees that the data collected is always accurate and legally defensible for regulatory purposes.
Key Product Specifications
Lightweight
17 to 140 dB
Up to 256 GB
Rechargeable Battery
Leq, Lmax, Lmin, Lpeak, Ln (6 values), LDN, LDEN
A, C or Z Frequency Weightings
F, S or I Time Periods
Wireless, USB-C or 240v Charging
Automatic Calibration
5 Year Microphone Warranty
Data Download Options - USB, Bluetooth, SD Card
Affordable Prices For Spare Parts
Optional Software Upgrades
CAL1200 Calibrator
LD-CAL1200
1/2" Pre-polarized free-field Mic
LD-377B02
Preamplifier
PRM821
Hand Trigger
CA-LD821-HS
Windscreen for 1/2 in mic
LD-079A06
Padlock & Keys
CA-4010D
Backpack
CA-1336
Mini Tripod
CA-4001B
Tripod Microphone Adaptor
CA-1261
8 GB, industrial grade microSD memory chip
LD-X21-SD-8GB
32 GB, industrial grade microSD memory chip
LD-X21-SD-32GB
USB C Cable and USB C to USB adapter
LD-CBL242-03
AC adaptor for LD721/821
CA-LDPSA045
Qi charger pad
LD-PSA046
Screen Protector
LD-X21-SP
SoundExpert NNR Case
CA-1324
Weatherproof Environmental Case
LD-EPS048
23 Ah Battery
CA-5502
Outdoor Microphone Protection
LD-EPS2116
Monopole with Superclamp
LD-EPS048-OPT3
3 m Microphone Extension Cable
LD-EXC010
11 m Microphone Extension Cable
LD-EXC035
20 m Microphone Extension Cable
LD-EXC066
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Guides & Downloads Email SupportFrequently Asked Question's
What is a noise nuisance recorder used for in the UK?
The SoundExpert Noise Nuisance Recorder is designed for capturing and assessing neighbour noise complaints in the UK, helping local authorities and housing associations gather reliable evidence.
It combines a Class 1 SoundExpert sound level meter with high-quality audio recording, enabling accurate measurement and identification of noise sources such as music, barking dogs, or impact noise.
What standards and regulations apply to noise nuisance recording?
Noise nuisance investigations in the UK require accurate and defensible data. The system uses a Class 1 sound level meter compliant with IEC 61672, ensuring measurements are suitable for formal investigations and reporting.
It supports work aligned with key legislation, including:
• Environmental Protection Act 1990 (statutory nuisance investigations)
• Local authority procedures for domestic noise complaint enforcement
Using a Class 1 system with calibrated audio evidence helps ensure data is robust enough for legal use and enforcement actions.
How does the recorder help investigate noise complaints?
The system records both sound level data and synchronised audio, allowing users to clearly identify the source and nature of a disturbance. Residents can activate recordings using a simple hand trigger, while the device logs continuous sound levels over time for detailed analysis.
This combination of objective measurements and audio evidence is essential for resolving disputes and supporting enforcement decisions.
What features does the SoundExpert recorder include?
The recorder is built around the SoundExpert 821 Class 1 sound level meter, offering a wide range of advanced features, including:
• 1/1 and 1/3 octave band analysis to identify noise characteristics
• 32-bit high-quality audio recording for clear evidence capture
• 30-second pre-trigger recording, ensuring events are captured before activation
• Touchscreen interface for simple operation
• Up to 40 hours battery life with wireless charging and USB-C charging
These features make it a reliable and easy-to-use noise nuisance recording solution for UK investigations.
How is noise nuisance data analysed and reported?
The recorder integrates with G4 reporting software, allowing users to review time history data alongside synchronised audio recordings, identify key noise events, and produce professional reports.
This ensures results are clear, defensible, and suitable for noise nuisance investigations, enforcement actions, and legal reporting in the UK, helping authorities resolve complaints more efficiently.
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