2026-01-27
Jönköping Fiskeribiologi is a small consulting firm, founded in 1998, that works to improve conditions for fish migration and fish life in Swedish waterways. The main focus is on measures that facilitate fish migration. Clients include municipalities, associations, energy companies, private individuals, and county administrative boards that require fisheries biology studies.
For the past ten years, the company has been using Sigicom’s measuring instruments for remote monitoring of water levels. The installations consist of pressure sensors connected to a data logger, DeltaBlue, which continuously sends measurement data via the internet, along with status updates when needed. Measurements are taken around the clock, and thanks to remote monitoring, there is no need to go out into the field to read the measurement data. DeltaBlue also has a warning system that sends messages via email or text message if the measurements cannot be taken for any reason. The logger’s battery life is often at least three years, and it is rare for any action requiring a person on site to be taken.
– Previously, our customers often had a dipstick or simple data logger in the water. Someone had to go out, read the data, and then enter it manually, more or less. There was always a risk that something would go wrong, be read incorrectly, or that a meter had stopped working without us knowing, says Peter Lindvall, civil engineer and co-owner of Jönköping Fiskeribiologi.
Available data at vattennivå.nu
In 2024, the company launched a service called vattennivå.nu. It is a simple website where daily updated measurement data is displayed publicly and is thus available to association members, municipal residents, fishing guests, bathers, or other interested parties. Launching vattennivå.nu was a clear step towards a more accessible and digital future for the industry.
– Many people visit the site and check the levels every day. We get a lot of positive feedback, even from unexpected sources, says Niklas Nilsson, biologist and co-owner.
The company, which is now run by Peter and Niklas after the founder handed over three years ago, currently works extensively with environmental adaptations of ponds, preliminary designs, legal processes, and biological investigations. Customers are often required to monitor water levels or release a certain flow. In such cases, vattennivå.nu is a natural tool to offer.
– For many of our customers, it’s a big boost. The meters provide an electronic logbook and the ability to monitor in real time. This provides transparency and security for everyone involved, especially in projects with multiple stakeholders, such as a lake where there are many property owners nearby, says Peter.
Reliable technology in the field
Jönköping Fiskeribiologi has been using Sigicom’s equipment for over a decade. Their experience is that the systems are reliable and cost-effective.
It’s rare for anything to go wrong. The battery life is long, usually three years, and if a problem arises, we receive an alarm immediately. Then we can act before there is an interruption in data collection, says Niklas.
Today, the company has several measuring instruments in operation in various projects linked to vattennivå.nu, and more are on the way. In the Store Mosse National Park, they monitor both flow and water level at three locations simultaneously.
– You might start with one meter, but you quickly realize that you want to measure at more locations. And there is no limit to how many you can connect, says Peter.
The system also offers the possibility to log parameters other than level measurement, such as water temperature. This is becoming increasingly relevant in line with climate change, not least in sensitive fish environments.
– We are pretty much the only ones buying these types of loggers and offering public data, precisely because they can do more than the usual. Our customers appreciate the overall package and the fact that we offer a future-proof solution, says Niklas.
The collaboration with Sigicom is highlighted as one of the reasons why the project has been so successful.
– It’s always easy to get in touch, with fast support and high quality throughout. The technology is proven and develops in line with our needs. We are a small company with limited resources, so it’s incredibly important that the technology just works and it does, concludes Peter.
DeltaBlue data logger connected to a water level sensor.