MZ-Switch Heart Rate Monitor
- The world’s first interchangeable exercise tracker for the gym, outdoors or in water. Monitor your heart rate on your chest, arm or wrist. Three times the motivation and three times the fun, with a light indicator and built-in memory so you can see your zone without a phone, and up to six months battery life on one charge. Registration Link: MyZone Registration Sizing Notes Measure the full circumference under your chest. Please note: The max sizes below are relaxed measurements. There is approximately 12″ additional length when the strap is fully stretched. SIZE MIN LENGTH MAX ADJUSTABLE LENGTH Small 21.25″ 27.6″ Standard 24.4″ 34.6″ Large 27.6″ 40.1″
