Cabled System

Low Pressure Hydrophone

INFRA P11 is a hydrophone for monitoring high frequency water shockwaves that affect fish farms and other extremely sensitive objects. It measures in a range from 0-100 kPa. Adjustments between a wide range of standards can easily be set from a connected INFRA data logger.

  • Omnidirectional hydrophone that senses hydrostatic and dynamic pressure
  • INFRA P11 can very easily be bolted during installation
  • Easily add new standards by updating the hydrophone’s software
  • Remote managing from your computer and mobile device
Cabled System

Hassle-free remote environmental monitoring




Pile Driving

Human Comfort

Key Features

Digital - The hydrophone has a built-in digital signal processor. The signal processor processes all incoming data in real time according to the selected standard.
Easy to mount - Mount and install the hydrophone on site and set up the monitoring in INFRA Net in just a few minutes.
Easy values - Get continuous results in different interval channels from maximum pressure and maximum impulse density.



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

Sharks and shockwaves in Gothenburg

Under normal conditions sharks, rays and other marine life seem to feel right at home in the Ocean Zone aquarium, part of Gothenburg’s science and experience center Universeum. But marine wildlife is also known to be sensitive to “unnatural” noise and vibrations, and the impact of noise pollution on various species is subject to continuing research. “To monitor acoustic underwater signals, we use highly sensitive Sigicom hydrophones.” – Per-Olof Bjelkström


Customer care

Our experts are ready to help

How can we help?

Support and calibration

The INFRA P11 hydrophone has a built in digital signal processor. The signal processor processes all incoming data in real time according to the selected standard. This allows you to keep your data logger working in the field while the sensor is sent for annual recalibration. We recommend that you submit your INFRA P11 for calibration every 12 months (every 24 months for long term monitoring). 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. The INFRA P11 Hydrophone monitors high-frequency shockwaves that affect fish farms and other extremely sensitive objects. Water shock waves arise from blasting and already at very low pressures they can damage fish and wildlife in the water. Fish farms are particularly sensitive to the overpressure

Made to work

The INFRA P11 hydrophone offers a rugged design and IP67 protection class and is designed for long service life in harsh conditions. The sensor has a unique ID number that follows the recorded data. This makes it possible to trace data to a certain sensor. The hydrophone has a calibrated sensitivity within +- 10%, and a maximum measuring range of 100 kPa.

Quick and easy set-up

The hydrophone 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 pressure. 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 your 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 remote 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 P11 datasheet for more information. Contact us to find out if INFRA can be used on your project.

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