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Types of ECG Electrodes

Disposable Electrodes: These are single-use electrodes that are most commonly used in clinical settings for routine ECG tests. They are made from materials such as Ag/AgCl (silver/silver chloride) and are usually adhered to the skin with a conductive gel or adhesive backing. Disposable electrodes offer convenience and hygiene, minimizing the risk of cross-contamination between patients.
Reusable Electrodes: These electrodes are designed to be cleaned and reused for multiple tests. They are more cost-effective over time compared to disposable electrodes but require proper cleaning and sterilization between uses. Reusable electrodes are also typically made from silver or silver chloride and are used in more controlled, longer-term monitoring settings.
Pre-gelled Electrodes: These electrodes come pre-coated with a gel that improves electrical conductivity, ensuring better signal quality with less need for additional preparation. They are also disposable, often used in environments where quick set-up and convenience are essential.