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Battery State | Garmin Connect IQ
Replacement Sensor module for Original Garmin HRM-RUN ANT+ Heart Rate Monitor | eBay
Stripped screw on my hrm belt... I don't know how to extract it. Any advices? : r/Garmin
Resetting the Heart Rate Chest Strap and Replacing Its Battery
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Garmin HRM 3-SS will connect/pair with forerunner 35 but will not show heart rate (see picture) - Accessories & Sensors - Running/Multisport - Garmin Forums
GARMIN ANT+ HEART RATE MONITOR SPORT TRANSMITTER HRM MODULE HRM3-SS NO STRAP | eBay