Dive Alert Ultra-loud Surface Signaling Device DB2 Outdoor Electronics low-profile design holds a full

low-profile design holds a full set of gear and then some

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Dive Alert Ultra-loud Surface Signaling Device DB2 Outdoor Electronics low-profile design holds a fullDive Alert Ultra loud Surface Signaling Device. DiveAlert compatible with the Aqualung AirSource (including AirSource3 QD). Mares Air Control, Oceanic Air XS and Aeris AirLink alternate inflation regulator systems. What do you do in a diving emergency if you need to get the attention of the pick up boat or someone else on the waters surface? Scuba divers have traditionally relied on whistles as their only audible surface signaling device. But if you