How do I change the battery in my Heart Rate Sensor (Polar Module) - Technical Information Library
Amazon.com : Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym, Cycling, Running, Outdoor Sports : Sports & Outdoors
Polar heart rate sensors | Change the battery - YouTube
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Batteries For The Polar Heart Rate Sensor - 2 X (CR2032) | eBay
PolarGlobal on Twitter: "Today we've launched a new heart rate sensor: Polar H9! - Bluetooth, ANT+ and 5 kHz technologies - Battery life of 400 hours - Compatible with Polar Club Discover