Replacement Soft Strap/Chest belt for Garmin Heart Rate Monitor HRM2-SS HRM3 -SS | eBay
Garmin Edge 520/820/1000/1030 / Fenix3 / Fenix5S / 920XT /HRM3-SS Running And Cycling Heart Rate Belt
Garmin HRM 3-SS will connect/pair with forerunner 35 but will not show heart rate (see picture) - Accessories & Sensors - Running/Multisport - Garmin Forums