Sigicom INFRA S50 Sound Level Meter IEC-Class 1

A rugged, Class 1 digital noise monitor built for unattended outdoor use. It integrates seamlessly with INFRA data loggers, allowing groundworkers and piling contractors to monitor live LEQ and Lmax levels remotely while ensuring full compliance with site boundary noise regulations.

Precision Class 1 Measurement: The S50 is a digital sound level meter fully compliant with IEC 61672 Class 1 requirements. The S50 provides the high-accuracy data necessary for professional environmental noise assessments and legal compliance monitoring.
Seamless INFRA Ecosystem Integration: Designed to work effortlessly with the INFRA system, this sensor connects via the INFRA bus. The sensor connects to data loggers like the Net V10 or Master, allowing for synchronized monitoring with vibration and weather sensors.
Advanced Audio and Frequency Analysis: Beyond simple decibel logging, the S50 captures audio files and provides 1/3 octave band analysis. This helps engineers identify specific noise sources and perform detailed frequency evaluations to mitigate site-specific noise issues.
Rugged Autonomous Performance: Built for long-term outdoor deployment, the unit features a durable weatherproof design. The unit utilizes the INFRA Net cloud service for automated data uploads, real-time alerts, and remote configuration.

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Full Description

For civil engineering and earthworks contractors, the INFRA S50 is a critical tool for maintaining positive community relations. This cabled sensor connects directly to an INFRA data logger, which handles all power and data transmission. It simultaneously measures equivalent (Leq) and maximum (Lmax) sound levels, providing a comprehensive overview of site acoustics. Because all signal processing is digital and performed within the sensor itself, your data logger can stay on-site while only the S50 is sent for annual calibration. The S50 is engineered to withstand the vibrations of piling and the dust of demolition sites. It features a weatherproof design and a bird spike assembly to prevent interference. When pre-set thresholds are breached, the system can trigger a short audio recording, allowing utility companies to identify whether a noise was caused by site plant or external factors. For remote sites, we can provide solar-powered solutions to ensure your monitoring remains uninterrupted without the need for site mains.

FAQs

Why is Class 1 certification necessary for my construction site?

Class 1 is the precision grade required for legal monitoring. If your project faces a noise complaint, only Class 1 data is considered robust enough to stand up as evidence in a local authority investigation or court case.

Does the S50 require its own power source?

The S50 is a cabled sensor that draws power directly from the connected INFRA data logger. While the sensor itself doesn’t need a battery, the data logger must be connected to site mains or our dedicated solar power package for long-term use.

Can I monitor noise and vibration on the same system?

Yes. The INFRA system is modular, allowing groundworkers to connect both S50 noise monitors and V12 geophones to a single data logger. This provides a unified view of all environmental impacts through a single reporting platform.

How does the audio recording feature help with neighbour complaints?

When noise exceeds your set limit, the S50 can record a 10-second audio clip. This allows demolition or piling teams to prove that a specific noise event was, for example, a passing siren rather than site machinery.

Is it suitable for the wet conditions found in drainage or earthworks?

Absolutely. The S50 features a rugged, weatherproof design and is supplied with a windscreen to maintain accuracy during the wind and rain common on UK construction sites.

Can I view the noise data in real-time?

Yes. Data is automatically uploaded to the cloud via the logger’s mobile connection. Contracting teams can view live decibel levels and historical charts from any web-enabled device, enabling immediate responses to threshold breaches.

How is the unit mounted on a site boundary?

The S50 is designed for vertical mounting and can be easily secured to walls, poles, or tripods. We can spec out your site from a plan view to ensure monitors are positioned for maximum boundary coverage.

What is the measuring range of the S50?

The monitor covers a wide range from 20dB to 130dB. This makes it sensitive enough for quiet background surveys but robust enough to handle the high-decibel impact of piling or blasting operations.

Can I receive alerts if the site gets too noisy?

Yes. The system can be configured to send instant SMS or email notifications to key project personnel the moment a noise threshold is exceeded, facilitating rapid trigger response actions on-site.

How does the reporting work for local authority compliance?

We can provide weekly or monthly reports that summarize your site’s noise profile. These reports are formatted to show compliance with your specific planning conditions, helping you maintain a smooth relationship with the council.