The Exercise Heart Rate Monitor is ideal for determining the heart rate of actively moving individuals. With this sensor, a persons heart rate can be monitored during, as well as after exercise. The Exercise Heart Rate Monitor consists of a wireless transmitter belt and a receiver module that plugs into a Vernier interface box or CBL. The transmitter belt senses the electrical signals generated by the heart much like an EKG. For each heart beat detected, a signal is transmitted to the receiver module, and a heart rate is determined.