Meet the BlueFox ST1: a safety bracelet that can save lives. It sounds an alarm if the user remains under a certain depth for too long. It has an electronic base and an alarm module. Once the alarm is triggered, the module is disconnected from the bracelet and sent to the surface with a balloon.
BlueFox can be programmed depending on the swimming ability or age of each person. The kit comes with an adjustable wristband. It can be used in pools, lakes, and everywhere else. More information is available on Indiegogo.