Garmin HRM-Dual™ | Heart Rate Monitor with Chest Strap
How to change battery for Garmin HRM-tri - YouTube
Garmin HR Strap Battery Replacement - YouTube
Battery Replacement Instructions for Premium Feature HRM Straps | Garmin Customer Support
Garmin Fitness - HRM-Pro transmits real-time heart rate data. It also tracks running dynamics that can help you improve your running form. And that makes this one impressive little strap. Shop now: