Not sure if this is a threat to SM8 or complementary? It could make the cleaver bouy redundant or maybe a complementary system adding more value and making sales easier.
The article implies it creates a "protected" area or possibly a virtual wall. Maybe a neat system to attach to a cleaver bouy?
http://www.watoday.com.au/wa-news/s...vice-for-surfers-beaches-20170420-gvp18x.html