0 Dive Alert Surface Air Horn   www.simplyscuba.comhttp://www.simplyscuba.com/products/DiveAlert/SurfaceAirHorn.aspx

Dive Alert, gives scuba divers the ability to signal on the surface using a loud, effective air horn. It is essential piece of scuba diver safety gear. Don’t be foiled by imitations, get the original Dive Alert scuba horn.

Traditionally scuba divers have relied on whisles as their only form of signalling device in an emergency. But a whistle relies on the diver being able to remove their regulator from their mouth and be able to place the whistle in their mouth and blow hard enough to be heard.
Specification

DA-1 Fits all standard low presurer inflators

DA-2X Fits Seaquest Airsource, Zeagle Octoplus, Beauchat venturi, U.S. Divers Air Mic, Oceanic Air XS and others.

DA-3X Fits Scubapro Air 2, Tusa Duo-Air, Atomic SS1 and others.

Duration : 0:2:17