Simsonar products monitor fish at any distance:
-   show them as video stream,
-   count them,
-   measure them, and
-   report to the user.


Our strategy is to combine the latest technology in optoelectronics, ultrasound, electronics, communications and software with the key components developed by ourselves to become number one in the selected business segment.

Monitor migrating fish at any distance

Simsonar Underwater Video Camera and Simsonar Fish Counter detect fish, measure their length and register them automatically. UVC uses ultrasound and is used for long distances from one to seventy meters while FC is an optical camera that can also recognise species.

Why Choose Us?

Simsonar believes the disruptive innovations change the business structures. We utilize the latest technologies to the maximum. We use our long experience in software design, in international business and in understanding of image creation to reach our goal of becoming the number one in the business of fish monitoring.


The global trends of improving the state of waters, recovering the levels of fishing, and building routes for fish to migrate create more opportunities for underwater monitoring. Because the poor or zero visibility prevents mostly the use of optical video cameras there is a need for new tools. Simsonar helps the governmental organisations and private businesses to reach their goals in their underwater operations by proving them with an ultrasound based video camera and optical camera for shorter distance with best accuracy in the market place.

Simsonar events

December 2017
The season was the most succesful for far. Simsonar was expecially happy for the four diffrent projects with the newest product SImsonar FC (Fish Counter). We believe the improved pattern recognition algorithm will make fish detection and measurement more accurate and faster.
The first two deliveries to Norway opened a new promising market. Simsonar UVC LR (Long Range) was used for projects requiring very high distances. The maximum can reach almost 100 meters in good conditions altough the realistic distance is 75 meters.
May 2017
Another season starting. The first commercial installation of Simsonar FC was done on May 11th. It is now monitoring a small brook. The first observations were surprising: a brook of five meters wide and 40 cm deep contains underwater living more than anybody expected. During the busiest hour almost two thousand fish passed the camera for spawning.
March 2017
Simsonar UVC has been in the market place since 2012. It has been developed continuously and the latest update is the Long Range model. The viewing distance has been extended to 70 meters. The first delivery will be done in June.
February 2017
Development efforts for new Simsonar FC are almost done. First modest marketing efforts result in huge interest. We look forward to new season with two projects!
January 2016
Very busy season is over. Simsonar cameras were researching rivers from Gothenburg and Helsinki up to Utsjoki and Arjeplog. Although our customers take care of analysis more and more also Simsonar was busy in analysing the recorded material and preparing reports. Now we are just weeks away from the first monitoring projects start. Looking forward to new season with improved products!
June 2015
There are now six Simsonar cameras in the water simultaneously! Seventh by the end of June.
May 2015
The first projects in 2015 start.
April 2015
Simsonar fiscal year 1.4.2014 - 31.3.2015 showed strong growth.
December 2014
The first product sales!
November 2014
The results of Vanhankaupunginkoski are reported. Only in 15 years the natural population of trouts! In 80's nobody believed this could happen.
July 2014
Project at Vanhankaupunginkoski starts.
April 2014
The first project in 2014 starts!
October 2013
Performance improvement: clear real-time image up to 70 meters and frame rate over 10 fps for distances up to 50 meters.
August 2013
Multiple monitoring sessions on Kemijoki.
July 2013
Full remote support: the camera can be operated remotely, recorded files can be uploaded in real-time to any server, the power supply can be controlled remotely, alarms on camera movement by e-mail, and optional site surveillance via web camera.
Multiple monitoring sessions on Kemijoki.
June 2013
A new version of camera introduced. Improvements in sensitivity, image quality, and file compression.
Monitoring project on Tornionjoki.
October 2012
Simsonar participates a project developing innovative solutions to detect the depth of salmons at hydroelectric plants.
June 2012
Two full-time fish counting projects started. Simsonar controls the cameras remotely to minimize the need fo on-site visits.
November 2011
Support for 96 beams ready.
The main development project finished in time.
The camera enters the production phase.
June 2011
The first sonar deployment with a customer.
June 2011
The first sonar pilot started with a customer.
May 2011
The first real life tests.
January 2011
Simsonar web site opened.
December 2010
New office at Kiilakiventie 1, 90250 Oulu, Finland.
October 2010
The first commercial commitment made.
September 2010
The first underwater image created with the prototype.
January 2010
Development of the prototype started.
August 2009
Proof of concept verifies the functionality based on the new ideas.
December 2008
Simsonar is established.

Simsonar Oy

Kiilakiventie 1

90250 Oulu


Business id: 2258840-7

Visiting address:

Kiilakiventie 1

90250 Oulu


Contact us:

Customer operations and support: arto.seppanen(at)simsonar.com

Sales at Simsonar: pertti.paakkolanvaara(at)simsonar.com

Product development at Simsonar: pertti.seppanen(at)simsonar.com

Management and innovations of Simsonar: heikki.oukka(at)simsonar.com

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