Analog heart rate monitors have the following advantages: Compatible with most of the cardio machines at the gym, Analog transmitters and receivers in the watch are less expensive, and; The signal from the … INTRODUCTION The DFRobot Heart Rate Monitor Sensor is used to measure the electrical activity of the heart. The AD8232 Single Lead Heart Rate Monitor is a cost-effective board used to measure the electrical activity of the heart. An ECG signal can be … This electrical activity can be charted as an ECG or Electrocardiogram... Add to Cart This electrical activity can be charted as an ECG and output as an analog reading. The DFRobot Heart Rate Monitor Sensor is used to measure the electrical activity of the heart. An ECG signal … This electrical activity can be charted as an ECG and output as an analog reading. A type of Heart Rate Monitor consists of an electronic circuit that monitors heartbeat by clipping onto a finger tip. It does this by shining light into or through your finger and measuring how much light is …