Garmin HRM-Swim Heart Rate Monitor Chest Strap
Ideal for use to measure HR and other data when chasing that black line down the pool. When used with the Garmin Forerunner 920XT, Garmin fenix 3 or Garmin Epix, stores heartrate when underwater, and sends realtime heart rate and interval summaries during rests with the HRM out of the water. Still in the original box and never used.