Breakthrough deployment proves real-time wireless monitoring can replace traditional sampling in European waters
CSignum will be presenting its wireless water quality monitoring solution at WWEM 25 (17-18 September) for industries needing to address growing regulatory pressure.
16 September 2025: CSignum has confirmed a successful first EU deployment of its wireless CWQM (Continuous Water Quality Monitoring) system in Denmark, delivering real-time water quality data from seabed to cloud without cables.
The CWQM system comprises CSignum’s EM-2Q water quality monitoring solution and EM-2G gateway.
The live 35-minute deployment followed by demonstration of streamed continuous multiple parameter data at the Port of Horsens represented the initial stages of a two month project whereby data will continue to be made available for analysis.
This deployment showed local officials how they could steadily monitor fluctuations in one of their key water quality parameters – dissolved oxygen – in real time.
Authorities have previously relied on scattered sampling to assess oxygen fluctuations in the area.
The event drew a varied audience including Danish investors, defence officials, water experts and representatives from Ørsted and City of Horsens.
The CSignum EM-2Q overcomes the limitations of acoustic, optical and cable-based systems by using electromagnetic fields to transmit data across the water–air barrier reliably – even in turbid, bio-fouled, or noisy shallow-water environments.
It is compatible with most existing underwater sensors, is easy to integrate, and safe for marine life. The system securely transmits data over distances of up to 100m via a nearby gateway.
Recovering the equipment to the surface is easy with an innovative buoyancy bag, activated remotely at the push of a button.
The solution is wireless, quick to deploy, reduces reliance on divers or permanent infrastructure, and mitigates the risks of vandalism or theft owing to portability and lack of visibility.
“Seeing real-time multi parameter trends – not just snapshots – is phenomenal,” said Graeme Boyce, COO of CSignum. “It empowers smarter, faster and more sustainable decisions and brings multiple benefits to serve the needs of all stakeholders involved in water quality. It is a transformative solution that is effective for authorities responsible for water and ocean health.
“Using our CWQM solution for monitoring means faster, smarter decisions for regulators and opens a continuous view of marine dynamics for scientists. It gives local communities the potential to protect vital ecosystems before it’s too late. Our CWQM solution enables us to stay ahead of environmental shifts. Horsens is just the start.
“With established sites in the UK, we are already planning and ready to scale this technology across Europe and beyond.”
CSignum will be presenting its EM-2Q wireless water quality monitoring system at WWEM25 at the NEC Birmingham from 17th to 18th September, at stand WW-U36.
ENDS
Issued by DXDMedia on behalf of CSignum.
For further information, enquiries or interview requests, please contact:
Deborah Lewis
debs@dxdmedia.co.uk
About CSignum
CSignum is the leader in wireless IoT communication solutions for submerged environments, transforming how critical data is transmitted in challenging conditions. Its cutting-edge technology eliminates the need for traditional cables, enabling reliable, real-time data transfer and reducing operational costs for industries such as utilities, maritime, offshore energy, and environmental monitoring. For more information on CSignum visit csignum.com.
