DUO-ALERT UNDERWATER & ABOVE HORN
The loud 125-125dB resonating frequency generated by this horn can be heard on the surface
for approximately 1 Kilometer (about 6/10th mile) and for about 300 feet underwater. 3 models
available to fit most BCD’s.
Duo-Alert Standard fits all styles of BC’s except if fitted with the a breathable type inflator.
Duo-Alert Type II fits Sherwood Gemini, Tusa Duo-Air, DiveRite RiteSource, H2Odyssea, Inflator plus, Zeagle Octo-Z, Atomic SS1, and Scuba Pro Air II.
Duo-Alert Type III fits Aeris Air Link, Oceanic Air XS2,Zeagle Octo+, Aqualung Air Mic, Seaquest Air Source, Apeks Octo+, Beuchat Venturi.