How Do Treadmills Measure Heart Rate?

The Advanced Treadmill comes up with Heart Rate Sensor that measures your heart rate. After measuring the Heart Rate of any person it displays on the LCD Screen. When you start running, jogging, and walking, you touch the handles where pulse reader is connected. Through the pulse rate, the heart rate sensor tells you your heart rate. The Heart rate sensors come up with High-Level Treadmills which can cost you more than 30000 Rupees.