EM-2

EM-2 is a wireless communication link that overcomes the limitations of acoustic, optical and cabled underwater communications. Using patented electromagnetic field signalling (EMFS), it transmits data from beneath the surface to shore, riverbanks, piles, buoys or structures such as wind turbines and bridges, and also through ice or from underground locations. EM-2 is sensor-agnostic and works with sensing systems that use industry-standard data interfaces.

Key features

• Performance unaffected by biofouling, turbidity or environmental noise in the water column
• Integrates with sensor packs such as multiparameter sondes and ADCPs
• Operates in salt-water and fresh-water scenarios and through mixed media such as water, ice or buried structures
• No adverse effects on aquatic life
• Bidirectional point-to-point communication; multi-point connectivity and relay capability announced as coming

Applications

• Internet of Underwater Things (IoUT)
• Ship under-hull and propulsion monitoring
• Offshore environmental and structural monitoring
• AUV/ASV data harvesting
• Inland and coastal environmental monitoring
• Underground data monitoring and security