Garmin HRM Tri Heart Rate Monitor (010-10997-09) Buy the Garmin HRM-Tri Heart Rate Monitor from Handtec. Pair your Garmin Forerunner 920XT with the HRM-Tri to enhance your triathlon experience. Store heart rate data even under water and then forward it to the 920XT. The strap of your HRM-Tri is soft with round edges an
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