Signals both underwater (about 100 feet) and on the surface (about 1 km). Attaches to your power inflator. The Aquatec Scub-Alert is not only starting to be a major requirement for many live-aboards and dive operations, it is also an essential piece of gear that will add to the enjoyment of the dive to any buddy team that need to get each other’s attention underwater.
#2 Scubapro Air-2, Tusa Duo Air, Atomic SS1
#3 SeaQuest AirSource, US Divers Micra, Oceanic Air XS, Zeagle Octoplus