Lezyne hr flow sensor black
The lezyne hr flow sensor high performance comfortable heart rate monitor conforms 100 to bluetooth smart standards for max compatibility durable lightweight polycarbonate construction with translucent body and led indicator flexible strap made from athletic materials replaceable cr2032 coin cell battery optimized for long lasting use lezyne hr flow sensor features conforms 100 to bluetooth smart standards for max compatibility flexible strap made from athletic materials rep