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Maxxus Polar Pulse Belt T34 - ECG Measurement, Compatible with Cardio Devices with 5 kHz Receiver, Waterproof, Adjustable, Size L, 85 - 140 cm, Chest Strap, Heart Rate Monitor, Heart Rate Sensor :
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Amazon.com : Polar H10 Heart Rate Monitor Chest Strap - ANT + Bluetooth, Waterproof HR Sensor for Men and Women (NEW) : Sports & Outdoors
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Polar H7 Bluetooth 4.0 Heart Rate Sensor Set for iPhone 4S/5 - Size - S, Black : Amazon.co.uk: Sports & Outdoors
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