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Amazon.com : WEGO Pace & Heart Rate Monitor With Easy to Use - Efficient Sensor for Extended Battery Life and Power Management : Sports & Outdoors
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Amazon.com : ANCHEER Folding Exercise Bike APP Control, Stationary Bike Indoor Cycling Bike with 10-Level Adjustable Magnetic Resistance, Twister Plate, Pulse Sensor, Easy to Move, Space Saving : Sports & Outdoors
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Amazon.com : TreadLife Fitness Ear Clip Infared Sensor Heart Rate Monitor for Sports Machines, Such as Stepper, Treadmill : Sports & Outdoors
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