| Can anyone advise? hello guys, hope you are well.
i am trying to find some sort of alarming my buddy while underwater. i was thinking about those underwater siren horns which connect to your inflator hose...
Can anyone advice on which is the best brand? or any other info or tip given is welcomed.
what happened was that we both use DPVs, when one stops, then is very difficult for the other one to notice and we've had an incident were in very bad visibility conditions things can go very wrong.
Thanks in advance.
Spyros
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Kamikazi Instrustor Trainer DIRRebreather Team Member
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