Underwater communications to
connect wireless networks up here
To IoT devices down here
Extend IoT underwater & underground
resilient
EM fields uniquely pass data through water, ice, rock and soil and into the air above
silent
Silent operation means stealth and improved security, EM fields do not impact marine life and are undetectable over distance
invisible
With no visible cables at the surface, monitoring solutions can be completely submerged
We use electromagnetic fields to connect wireless networks above the water to digital things in the water
resilient
EM fields uniquely pass data through water, ice, rock and soil and into the air above
silent
Silent operation means stealth and improved security, EM fields do not impact marine life and are undetectable over distance
invisible
With no visible cables at the surface, monitoring solutions can be completely submerged
The first and only platform to carry data with low frequency electromagnetic fields, nature’s perfect through-the-surface communications method for wireless data transport between more devices in more places than ever before.
APPLICATIONS INCLUDE
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The first and only platform to carry data with low frequency electromagnetic fields, nature’s perfect through-the-surface communications method for wireless data transport between more devices in more places than ever before.
Resilient Wireless Communications
Breaking Through the Barriers – CSignum’s EM-2 solution uses patented electromagnetic field signaling (EMFS) for wireless communication, uniquely capable of transmitting data from the seabed to the shore, from a ship’s hull and propulsion systems to the deck, and from riverbed to riverbank. This technology can transfer data without reflection at the water-to-air interface, a common issue with acoustic systems.
CSignum’s EM-2 supports bidirectional sensor data transfers at distances up to 200m enabling the successful deployment and operation of Internet of Underwater Things (IoUT) monitoring devices. The CSignum electromagnetic field based communications method can also be used to communicate underground and pass data through rock, concrete and soil.
News Releases
CSignum secures £6M to transform underwater wireless networks
Be part of the future of underwater connectivity at the CSignum stand at Ocean Business 2025
Electromagnetic wireless is a key to extending  the internet of things (IoT) below the surface
CSignum is revolutionizing the way critical wireless data is transmitted, breaking through the barriers between air and water in both fresh and salt-water environments.
This innovation is pivotal for assisting in the effective monitoring of pollution and environmental conditions in the world’s oceans, lakes, and rivers, while also facilitating data communication in areas that were previously impossible to reach, such as underground or beneath the hull of marine vessels.
CSignum brings the connectivity required for networking the Internet of Underwater Things (IoUT).