Timex Heart Rate Monitor is a perfect medium to measure and record the level of heart rate. This specialty of Timex Heart Rate Monitor accounts for its popularity among children and adults as well. You can keep a constant check over a slight deviation in the heart rate with the Heart Rate Monitors by Timex. It helps you take proper medication at the right time. Many of the Timex Heart Rate Monitors come in an easy to carry bags. These type of Heart Rate Monitors can be carried away anywhere. .