SeaChange chairman Rod Hartley said the devices would be available this summer in two options - an antenna fixed to a surfboard, or surfboards with the antenna built in.
The electronic field is created by two battery-powered electrode modules about one metre apart, he
said the technology had initially been developed in South Africa.
"The South Africans invented the technology and then made a mistake," he
"They brought out a product which was a huge, cumbersome thing which no one could wear.
"It was proved effective by abalone divers who strapped them to their cages, that was in 1995 and then nothing happened."
In 1999, Mr Hartley
travelled to South Africa and negotiated a world exclusive licence for the technology. Mr Hartley
said it was coincidence the technology was ready for public scrutiny just days after a shark killed 29-year-old surfer Brad Smith in West Australian waters.
"We're very sensitive about appearing to want to capitalise on this young man's death," Mr Hartley