Cabled System

Sound Level Meter

INFRA S50 Sound Level Meter – IEC-Class 1 is a noise monitor meter that makes it easy to perform unattended monitoring of noise near construction sites or urban traffic. The INFRA S50 is suitable for both indoor and outdoor noise monitoring applications.

  • Extremely rugged and reliable
  • Can easily be mounted on the wall, tripod, or pole
  • Manage settings remotely from your computer and mobile device


Cabled System

Hassle-free remote environmental monitoring




Pile Driving

Human Comfort

Key Features

Digital - The INFRA S50 Digital Sound Level Meter contains both a high-quality microphone and a complete array of electronics with digital signal processing.
Rugged design - Extremely rugged and reliable noise monitor adjusted for both outdoor and indoor use, with bird protection and IP67 protection class.
Easy configuration - Configure your measurement settings in INFRA Net or in the display of the INFRA data logger.


Access Your Monitoring Data in INFRA Net

INFRA Net is a cloud-based project management tool that streamlines many project management tasks that cost time and money. You can view real-time data and information online, perform data analysis, create reports, export visualization of data captured by the INFRA monitoring system, and much more.


  • Remotely control sensors deployed in the field
  • Eliminate the requirement for an on-site operator
  • Automate the tracking and communication of sensors
  • Automatic instrument diagnostics
  • Manage alarms and alerts to stakeholders and employees


Customer Case

Sound Level Measurement in High Detail

In Sweden’s second largest city of Gothenburg, heavy construction and blasting are taking place as a new underground railway is being built under the central city. Johan Scheuer, a monitoring consultant at Ensucon, measures the noise levels in sensitive buildings that are located next to the drilling and blasting activities. On the project, Johan is using 35 INFRA S50 noise sensors from Sigicom.


Customer care

Our experts are ready to help

How can we help?

Support and calibration

INFRA S50 Digital Sound Level Meter contains both a high quality microphone and a complete array of electronics with digital signal processing. All filtering and signal processing is performed digitally in the S50. This allows you to keep your data logger working in the field while the sensor is sent for annual recalibration. Sigicom has calibration laboratories in Stockholm (Sweden), London (UK), Caen (France), Colorado (USA), and Ottawa (Canada). Read more about our calibration services under Support. 


Environmental monitoring is a crucial part of our society and is performed within many construction and infrastructure projects. Vibration, sound, air over pressure, dust, and many other parameters are monitored in construction and infrastructure projects.  Making sure that nearby buildings are protected, and residents are comfortable, is a best practice in the industry.

Made to work

The INFRA S50 noise monitor offers a rugged design and IP67 protection class for a long service life in harsh conditions. With the INFRA System you can monitor several parameters at the same time, by connecting the INFRA S50 noise monitor to your INFRA datalogger and add sensors that measure vibrations, air pressure, dust, or other values.

Quick and easy set-up

The monitor is easily mounted and installed on your worksite in just a few minutes. After installation, the INFRA System’s extremely easy-to-use interface allows to instantly and effectively start monitoring noise levels. All monitoring is performed digitally and in INFRA Net web application you can easily select standards. In INFRA Net you can adjust settings and view all of the sensors and monitors in your projects.

Work remotely

Manage your project remotely via your computer or mobile device via INFRA Net, our internet-based system for project administration. In INFRA, you will find a rugged and reliable remote monitoring system, helping users reduce travel costs and increase efficiency. Project alerts can be received by key project personnel at designated measurement thresholds. Data can be analyzed, and reports generated as required for any project.


Investing in Sigicom’s vibration monitoring equipment is a wise and future-proof investment. INFRA sensors are preloaded with many measurement standards, providing compliance for use on projects all over the world. Download the INFRA S50 datasheet for more information. Contact us to find out if INFRA can be used on your project.