4649 Chongさん ( ICQ=228396180、 メール、 ホームページ ) 05/16 (土) 15:12 UID:[ 6592@ZM3pSXWx ] Where did you go to university? <a href=" http://www.samhardenburgh.com/prejac-tablet.pdf#rage ">prejac tablet</a> Their product is a Wahooo Swim Monitor System. The system requires each swimmer to wear a headband, called a swimband. The band contains two sensors and a sonar transmitter that sends out a signal when it is submerged longer than 20 seconds. The signal triggers warning lights posted along the waterfront begin flashing yellow, and after 30 seconds, the alert turns red and a siren starts going off, alerting lifeguards that someone is in danger.
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