Underwater alarm?

Does anyone have suggestions for an underwater device to signal swimmers? We'd be using it from a kayak, so something along the lines of a "clicker" might work the best. Any ideas? Thanks. JB
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  • Former Member
    Former Member
    . In the open water, sticking a pipe in the water and striking it with a hammer or wrench would also catch my attention, depending on how far away I was from the kayaker. Isn't that what they did in Jaws 2 to attract the shark before they killed it? :afraid::afraid:
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  • Former Member
    Former Member
    . In the open water, sticking a pipe in the water and striking it with a hammer or wrench would also catch my attention, depending on how far away I was from the kayaker. Isn't that what they did in Jaws 2 to attract the shark before they killed it? :afraid::afraid:
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