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The number of worldwide drowning deaths is over 37 million each year. among which the swimming deaths account for the most. Swimming Danger Alarm system can well monitor the diving depth and breath of swimmer to determine whether there is danger. People will put on the sos bracelet. It has gps positioning which can locates every swimmer. It monitors depth and time through pressure and a timer, and will issue yellow alert and red alarm according to extent when the status reaches the danger zone. Lifeguards can effectively observe every swimmer through the monitoring map to ensure timely and accurate rescue when danger happens.
Fujian Sanming, China