Main Functions: heart rate monitor, alarm, chronograph, hourly chime signals EL back light & water resistance to 5ATM Heart Rate Monitor: Continuous, accurate heart rate provides clear workout guidance. It is important for you to know your MHR (maximum heart rate) training zone, upper heart rate limit & lower heart rate limit before you begin, they help you achieve the maximum health benefits out of your workout.
Includes:: heart rate chest strap made from soft fabric material that adapts to your body shape. Water Resistant: This heart rate monitor watch is with water resistant to 5 ATM. You can wear it when washing hands, but please DO NOT operate the buttons under water. Specifications: Accuracy: +/-1 second per day Power supply: CR2032 battery (included) Approximate battery life: 12 Months Dial diameter: 47 mm Case thickness: 13 mm Strap
Size: 22 x 240 mm Water resistance: 5 meters