heart rate monitors

(Society for Maternal-Fetal Medicine) In a study to be presented today at the Society for Maternal-Fetal Medicine's annual meeting, The Pregnancy Meeting, in San Francisco, researchers will present findings that prove that the use of fetal heart rate monitors lowers the rate of infant mortality.

It's a excelente product. In my spinning class i always had a interference problem with other's people monitor. With this belt the problem are gonne. Excellent !!!

Zone Trainer Digital Heart Rate Monitor with a black resin strap and digital display, INDIGLO night-light, 100-hour chronograph, 27-lap memory, 100-hour countdown timer, Alarm with 5 min back up, Water resistant to 50 meters, Target zones, Zone trainer,...