New affordable wristband device prevents drownings


June 20, 2006

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June 21, 2006 A new wristband device could significantly reduce drownings and near-drownings in swimming pools. The device checks individual swimmers via a small worn wristband, monitoring depth, motion and time. If a bather approaches preset limits the wristband issues a wireless alert via radio and/or ultrasonic transmission. The wristband alarm sounds and the LED lights flash, prompting the swimmer to return to a safer location. If they fail to respond appropriately, the unit issues a full alert to supervisory staff - a feature which reduces 'false-positives', a major problem with many alarm systems. Pool supervisors are highly effective once they recognise that an 'event' is in progress but they are human, and the device gives them and distressed swimmers that vital second chance.

SenTAG is intended for use at pools operated by both the public sector and by private organisations such as hotels, schools and sports clubs, whether formally or informally supervised.

Mike Lyons, chief executive officer of SenTAG, says that the company set out to advance the range of scenarios under which pool safety systems are effective and change the economics of using them: "SenTAG provides individuals with alarmed protection in shallow or deep water, crowded or 'empty' pools, and is even capable of picking up those in distress before they sink to the bottom of the pool or float to the surface. The system is simple to install, requires no complex building work or expensive cable installation and is straightforward to use. We calculate that the costs will work out at between GBP1 to 3 per hour, depending on the size of the pool."

About the Author
Mike Hanlon Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. As a travelling photojournalist during his early career, his work was published in a dozen languages across 20+ countries. He went on to edit or manage over 50 print publications, with target audiences ranging from pensioners to plumbers, many different sports, many car and motorcycle magazines, with many more in the fields of communication - narrow subject magazines on topics such as advertising, marketing, visual communications, design, presentation and direct marketing. Then came the internet and Mike managed internet projects for Australia's largest multimedia company, (Australia's largest Telco), (Australia's largest employment site),,, and a dozen other internet start-ups before founding Gizmag in 2002. Now he writes and thinks. All articles by Mike Hanlon
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