Take your training to the next level by pairing HRM-Swim with a compatible watch. The sleek, nonslip strap stays in place, even during wall push-offs. Once you’re resting out of water, real-time heart rate, interval summaries and stored heart rate are transmitted to your watch.
Stores Heart Rate Underwater and Forwards Data:

• Specifically designed for swimmers
• Nonslip strap
• Stores and forwards heart rate data to compatible devices

Garmin Heart Rate Monitor Swim, Blue (010-12342-00) Specifications:

• Unit dimensions (LxWxD): 23.0"-57.0" x 1.5" x 0.5" (58.0 - 145.0 x 3.8 x 1.2 cm)
• Weight: 2.5 oz (72 g)
• Module size: 29.4 x 51.4 x 8.5 mm
• Module weight: 1.8 oz (51 g)
• Size adjustment: Bi-fold
• Sizing range: 23.0"-57.0" (58.0 - 145.0 cm)
• Battery: CR2032
• Battery life: 18 months (swimming 3 hours per week)
• 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: no
• Stores and forwards heart rate: yes
• Swim interval heart rate statistics: yes
• Non-slip design for pool swimming: yes
• Pool chemical resistant: yes