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Polar | Original New Polar Verity Sense OPTICAL HEART RATE SENSOR with 2 years warranty | Color : Grey | HKTVmall The Largest HK Shopping Platform
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Amazon.com : Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym, Cycling, Running, Outdoor Sports : Sports & Outdoors
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