Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821

Want a sound level meter that works like your phone? The Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821 does just that with a large touch display viewable in any condition.

I. Specification of Multi-function sound meter Larson Davis SoundExpert® series 821

PRODUCT NOISE EVALUATION AND ENVIRONMENTAL NOISE | Series 821ENV

• Whether making handheld noise measurements or measuring environmental noise for several weeks, the Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821 is an excellent choice for ease of use and low power operation.
• With a large, responsive touch screen, SoundExpert® Model 821 offers A, C, and Z frequency weightings F,S, and I time weightings, community noise metrics, optional Octave Band Analysis, and more in both Class 1 and Class 2 models.

HIGHLIGHTS OF Larson Davis SoundExpert® dòng 821

• Removable preamplifier up to 200 ft (60 m)
• Large, responsive touch display
• Long battery life – up to 40 hours
• Automatic data download via Bluetooth or USB options
• Flexible powering options, including wireless charging and 12 V battery
• Optional 1/1 and 1/3 octave band analysis available
• Ready to measure in seconds with quick boot time
• Class 2 meters available as Model 721ENV and Model 721ENV-D (See Specifications for details)
• Languages supported: English, Français, Italiano, Português, Español.

SoundExpert® dòng 821 NOISE MONITORING AT YOUR FINGERTIPS

SoundExpert® Sound Level Meter Series 821ENV simplifies noise measurements with a large, responsive touch-screen display. Whether making handheld sound level measurements or measuring environmental noise for several weeks, SoundExpert® Model 821ENV is an excellent choice for ease of use and low power operation.

The SoundExpert® Model 821ENV includes the essentials for measuring noise by providing:

• A, C, and Z frequency weightings
• F, S, and I time weightings
• Full-featured data logging.

Included G4 LD Utility software offers project management, measurement setup, data visualization, data export, and streamlined report generation.

Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821 together with GMGA MEASURING quality and customer support delivers a professional solution you can trust.

II. Application of Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821

Noise monitoring solutions to fit your application

AIRPORT NOISE

• Airports, small and large, use noise and operations monitoring systems to reduce the noise of flight operations in the surrounding community…

BIOACOUSTIC STUDIES

• Whether monitoring the quietest soundscapes across the globe or capturing the sound level of birds, insects, mammals, or sea creatures...

OMMUNITY NOISE

• Community noise monitoring helps manage noise sources and relationships between businesses and the community residents…

CONSTRUCTION NOISE

• Construction noise monitoring helps contractor to build a better relationship with the surrounding community and local regulatory agencies…

DATA CENTER NOISE

• Proactively monitor and manage noise levels around your data centers. Enhance operational efficiency, maintain regulatory compliance, and foster a harmonious relationship with your surrounding community…

INDUSTRIAL NOISE

• Industrial noise generated from plants, mills, refineries, and more, impact the quality of the surrounding community…

MARINE NOISE MONITORING

• Marine mammals, including whales, use sound to communicate, but sound affects more than just communication – it affects everything they do. For successful construction permitting and operation for underwater projects, it is essential to understand the regulations surrounding underwater noise…

MINING NOISE

• Noise management from mining operations is a fundamental responsibility of the mining industry…

MOTORSPORT NOISE

• Motorsport noise can be a significant complaint for neighboring communities and present the danger of hearing loss to employees and spectators…

NATIONAL PARKS NOISE

• Long and short-term studies are being done to determine the impact of noise on the soundscapes of National Parks…

RAIL NOISE

• Controlling and monitoring railway and train noise in residential and urban areas is a critical function of a railway…

STADIUM NOISE

• As venues continue to compete with the home viewing experience, providing fans with feedback about real stadium noise levels has many benefits…

TRAFFIC NOISE

• Traffic noise monitoring can help mitigate the impact to millions of people both at home and work…

WIND FARM NOISE

• The environmental impact of the turbine and blade pass noise is a concern that needs to be carefully monitored…

III. LD Atlas™ mobile app

NOISE & VIBRATION MONITORING – CONNECT, MEASURE, ANALYZE

LD Atlas™ is a free mobile app for use with your new Larson Davis equipment. Install LD Atlas on your phone or tablet - available for both iOS and Android - and connect to your Spartan™ series 821 Noise Dosimeters, SoundAdvisor™ Sound Level Meter Model 831C, and Human Vibration Meter Model HVM200. Connect to your meter and use LD Atlas to easily check on the status of your meter, make setup changes for a new measurement, analyze data, listen to recorded audio files, and even create and share PDF reports with your own company logo on them.

Connections are made to the Spartan™ series 821 meters seamlessly over Bluetooth Low-Energy, without the need to pair devices, or via the IP address of your Sound Advisor 831C or HVM200. Data is presented within a spreadsheet view, time history graphs, and octave band analysis breakdown.

LD Atlas MOBILE APP OFFERS

• Management of meters connected to the internet
• Calibration of meters
• Ability to review data and preview graphs
• Report production and sharing
• Annotation of data with speech-to-text
• Playback of sound recording files
• Download of files via Bluetooth connection.

SOUND LEVEL METER APPLICATONS

• Environmental noise monitoring
• Attended noise measuring
• Product noise evaluation
• Production line acoustic testing
• Site assessment
• Reverberation time measurement
• Frequency determination.

NOISE DOSIMETRY APPLICATONS

Worker noise exposure

• Shift analysis
• Task analysis.

Choose from preset or create custom dose settings

• OSHA-PEL
• OSHA-HC
• ACGIH
• NIOSH.

HUMAN VIBRATION METER APPLICATONS

• Hand-arm vibration measurements
• Whole-body vibration measurements
• General vibration measurements
• 1/1 and 1/3 octave filters.

IV. Standard packages and Optional accessories for Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821

Technical specifications of Multi-purpose environmental sound level meter Larson Davis SoundExpert® series 821