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Garmin HRM-Dual - Premium Heart Rate Monitor Chest Strap, Real Time Heart Rate Data via Bluetooth Low Energy, ANT+, Black : Amazon.co.uk: Sports & Outdoors
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Amazon.com: Fitcent Heart Rate Monitor Armband with Blutooth ANT+, Optical Armband Heart Rate Monitor, HRM Arm Band for Peloton IFit Strava Wahoo Zwift Garmin Watch (Black) : Electronics
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