Why have DiveAlert? What would you do in a diving emergency if you needed to get the attention of the pick-up boat or someone else on the water's surface? Before DiveAlert SCUBA divers had relied on whistles or a SMB (surface marker buoy) as their only signaling devices in such an emergency. But if the diver is disabled and can't blow into a whistle (or deploy the SMB) the whistle makes no sound at all. Or if the boat operator is not looking in the direction of a diver with a SMB deployed (IF the diver was able to even deploy the SMB) the diver goes un-noticed.
In contrast, DiveAlert enables divers at a mere touch of a button to generate a blast of sound that can be heard up to a mile away.
DiveAlert does not require any modification of your other equipment and it does not interfere with the normal operation of your equipment.
When you need to get someone's attention on the water's surface you simply press a button and DiveAlert uses a small amount of air from your SCUBA tank to make a piercingly loud sound.
DiveAlert, the most effective and convenient surface signaling device available.