Garmin HRM-PRO Heart Rate Monitor is the ultimate in heart rate monitors. It doesn't only monitor your heart rate but also running dynamics. Even when you're swimming, the monitor records the data and then sends it to your device straight after your swim. Challenge yourself with this comfortable strap. Features: - ANT+ heart rate: Yes- BLE heart rate: Yes- Supports heart rate variability and advanced- Hart rate features: Yes- ANT+ running dynamics: Yes- Stand-alone activity monitoring (steps, all-day heart rate, calories and intensity minutes)- Support Physio TrueUp- Stores and forwards heart rate: Yes- Swim interval heart rate statistics: Yes- Weight: 59 g- Size adjustment: Bi-fold- Sizing range: 60.0-106.0 cm; 60.0-142.0 cm with optional strap extender- Battery: CR2032- Battery life: 12 months (Tri training 1 hour per day)- Water rating: 5 ATM- Operating temperature: -10C - 50C- Radio frequency/protocol: 2.4 GHz ANT wireless communications protocol; Bluetooth - Wireless Technology 5.0- Range: 3 m- System compatibility: ANT+, Bluetooth

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