Amazon.com: Garmin Elastic strap for Heart Rate Monitor replacement, Standard Packaging : Electronics
Support: Changing the battery on a Garmin Heart Rate Monitor - YouTube
Garmin Hrm1g / Running Heart Rate Monitoring Chest Strap Ant + Waterproof Brand New Original First Generation Hrm Black No Box - Compasses - AliExpress
Garmin Brand HRM1G Chest Band Heart Rate Monitor | Don't Haggle - buy and sell for less!
Garmin HRM1G Heart Rate Monitor With Chest Strap Battery for sale online | eBay