Enhance your triathlon experience by pairing HRM-Tri with your Forerunner® 920XT1. The HRM-Tri stores heart rate data when underwater, then forwards it to the 920XT. Our smallest and lightest module fits within the width of the strap. Its soft, rounded edges and covered seams make the strap super-comfortable out of the water, too. Running Dynamics HRM-Tri also has an accelerometer in the module that measures torso movement to calculate 3 running metrics:2 Cadence — the number of steps per minute. It displays the total steps (right and left combined). Vertical oscillation — the bounce in your running motion. It displays the vertical motion of your torso (measured in centimeters). HRM-Tri is compatible with several other fitness products but will only display heart rate when paired. Ground contact time — the amount of time in each step that your foot spends on the ground while running (measured in milliseconds). Example of Typical Uses HRM-Tri HRM-Swim Bike rides, runs, bricks Pool swims Open water swims Open water swims Triathlon competition (open water swim) Triathlon competition (pool swim), triathlon kit not required Triathlon competition (with pool swim) while wearing triathlon kit Runs or bike rides as part of a multi-sport activity that includes a pool swim ¹Forerunner 920XT, epix™, fēnix® 3 ²Running dynamics features are available only on the Forerunner 620/920XT and fēnix 2/3. HRM-Tri is compatible with several other fitness products but will only display heart rate when paired. What’s in the Box? HRM-Tri Manuals Technical Specification: Unit dimensions (LxWxD): 60.0 - 142.0 x 3.0 x 1.2 cm Weight: 2.1 oz (59 g) Module size: 29.4 x 51.4 x 8.5 mm Module weight: 49 g Size adjustment: Bi-fold Sizing range: 60.0 - 142.0 (cm) Battery: CR2032 Battery life: 10 months (Tri training 1 hour per day) Water rating: 5 ATM ANT+® heart rate: yes Supports heart rate variability and advanced heart rate features: yes 2.4 GHz ANT wireless communication protocol: yes Running dynamics: yes Stores and forwards heart rate: yes Swim interval heart rate statistics: yes Non-slip design for pool swimming: no Pool chemical resistant: no

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