Garmin HRM-DUAL Heart Rate Strap In-Depth Review | DC Rainmaker
Garmin, HRM-Dual Heart Rate Monitor, HRM-Dual, ANT+, BT, 010-12883-00 - On Your Left Cycles
HRM-Dual | ANT+ en Bluetooth hartslagmeter | Garmin
Why does HRM-Dual consistently shows *very* high HR (170+) during first 6-8 min of warmup during runs? Is this a fit issue? Don't feel like I've maxed out my HR; not gasping