Garmin HRM 200 Heart Rate Monitor - M-XL

The Garmin HRM 200 heart rate monitor is a chest strap sensor that transmits real-time heart rate and heart rate variability data to compatible Garmin cycling computers, smartwatches, and select fitness equipment including Tacx trainers. Connectivity runs simultaneously over ANT+ with unlimited concurrent connections and Bluetooth Low Energy with up to three concurrent device connections. The detachable module weighs 20 grams and is rated 3 ATM water resistant, while the strap is machine washable and attaches to the module without tools. Battery life reaches up to 12 months using a user-replaceable CR2032 cell at one hour of daily use. Two strap sizes are available: XS-S, which fits a chest measuring 23.5 to 33.5 inches, and M-XL, which fits a chest measuring 31.5 to 47 inches.