One patented technology, applied across the industries that depend on reliable data from places cables and radio can't reach.
CSignum transforms the transmission of critical environmental data across the air–water boundary — enabling continuous water-quality and pollution monitoring across rivers, lakes, reservoirs and coastal waters.
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Photo: Z22 / CC BY-SA 4.0 Smart buoys are the backbone of coastal intelligence — yet their most valuable readings come from sensors below the waterline, where cables corrode and surface telemetry struggles. CSignum's EM-2 links submerged sensors to the buoy and the shore wirelessly through the water itself, delivering continuous, real-time data on water quality, currents and pollution events across estuaries, harbours and the nearshore — with no cables and no disruption to the marine environment.
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From offshore wind and wave-and-tidal arrays to oil and gas platforms, energy infrastructure depends on data from the splash zone and seabed — exactly where cables fail and acoustic systems struggle. CSignum's EM-2 carries structural, corrosion and performance data wirelessly across the water–air boundary, so operators can monitor asset integrity and plan maintenance without divers, cabling or costly downtime.
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Photo: jasonwoodhead23 / CC BY 2.0 EM-2 doesn't stop at the waterline — its low-frequency fields pass through soil, rock and sand, carrying data from buried instruments straight to the surface. On construction and groundworks sites that means wireless geotechnical readings without trenching a cable to every sensor. At landfills EM-2 links buried monitors to the surface, so compliance data keeps flowing even as the site is capped and reprofiled.
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CSignum technology is valuable for government and security initiatives, providing essential covert connectivity and monitoring across the water–air barrier.
Discuss your applicationWherever sensors go underwater or underground, CSignum brings the connectivity to bring their data back.
From the Internet of Underwater Things to underground monitoring, our team will help scope the right EM-2 configuration for your environment.
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