Garmin HRM-Tri Heart Rate Monitor

Enhance your triathlon experience by pairing HRM-Tri with any compatible Garmin wearable. The Garmin HRM-Tri stores heart rate data when underwater, then forwards it to your wearable at the end of your swim. Our smallest and lightest heart rate monitoring module fits within the width of the strap. The strap's soft, rounded edges and covered seams make the strap it super-comfortable out of the water, too. 

Heart Rate Data in 3 Disciplines

• Specifically designed for triathletes
• Garmin smallest and lightest heart rate monitor (HRM)
• Comfortable, easily adjustable strap

Extensive Running Dynamics

When running, this pairing allows your compatible wearable to report 6 running dynamics metrics: cadence, stride length, ground contact time, ground contact time balance, vertical oscillation and vertical ratio.

Physical Specifications

• Unit dimensions (LxWxD): 23.5”-56.0” x 1.2” x 0.5” (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: 1.7 oz (49 g)
• Size adjustment: Bi-fold
• Sizing range: 23.5”-56.0” (60.0 - 142.0 cm)
• Battery: CR2032
• Battery life: 10 months (Tri training 1 hour per day)
• Water rating: 5 ATM

Additional

• 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

In the Box

• HRM-Tri
• Strap Extender
• Manuals