The ECG sensor measures the electrical energy generated during a heartbeat and can also be used to record surface EMG (muscle contractions). To record the classic PQRST wave, the sensor’s three electrodes can be attached to the skin of the user’s forearms using disposable ECG patches.

Each sensor is supplied with a pack of 100 disposable ECG electrode patches. Fast data sampling is required when using the ECG sensor.


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  • Comparing the ECG to the waveform produced by the Heart Rate Sensor
  • Comparing the ECG of a rested heart to an exercised heart
  • What happens to the ECG trace if a sensor lead location is changed
  • Understand the meaning and relationships of the PQRST waveforms
  • Investigate the effect of mild stimulants (caffeine)

As the average heartbeat cycle is typically 0.7 – 0.9 seconds, data needs to be collected with an SmartSense unit capable of fast logging.

The ECG sensor has 3 sensor leads. The change in electrical energy is detected by two leads and referenced to a ground signal. The changes in energy are displayed as a waveform. As the electrical changes being detected are very small and prone to disturbance, it is vital that the test subject is relaxed, and motionless.

Please note that this product is designed for demonstration of the ECG waveform, it is not designed or intended to be used for medical diagnosis.

Works with the following Dataloggers:

VHub4 and VHub8


E.C.G. (Electrocardiogram)

  • 200 to 4,000µV

Pack of 100 disposable ECG electrode patches

The sensor is supplied with a pack of 100 E.C.G. electrode patches for attaching to the test subject’s skin. The electrode patches are disposable silver/silver chloride hypoallergenic gel on a foil backing. Replacement packs of patches are available.