Garmin hrm pro

Garmin HRM-Pro Plus

Garmin HRM-Pro Plus - Premium Chest Strap for Recording Heart Rate and Running Efficiency Values such as Step Rate & Ground Contact Time, Treadmill, ANT+ & Bluetooth Technology, Black

Garmin Heart Rate Chest Strap Extender - 12.8" Extension Strap Fits Pro, Dual, Run, Swim, HRM-Tri. Total up to 56" Chest Strap Length, black