How does BlueFox ST1 know when to release the alarm balloon?


In the above example the BlueFox ST1 is programmed for an adult swimmer with average swimming skills. It allows the swimmer to dive 15 seconds deeper than 50 cm. Should the swimmer remain more than 15 seconds below this depht, the software releases the balloon and alerts immediately. 

It will not release the alarm, if the swimmer returns back to the surface less than 50cm beneath the water surface. 

Once the alarm has been released, a strong Power LED on the bracelet unit will help to identify the position of the person in distress.