Kind of expensive, but you can see from the pic, they do work. I hook them up to a one-chip amplifier I made, and then that goes into a battery-op oscope. Cheap EKG!
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Product details
Brand: Covidien
This is a 10-pack of Biomedical Sensor Pads from Covidien, disposable electrodes used to measure EEG, ECG, and EMG signals. These little pads are perfect for short-term monitoring in Neurofeedback and Biofeedback. They are to be used once and are pretty handy due to the integrated, latex-free gel. Each pad securely adheres to the skin, and the snap connector can be pushed onto or removed from the electrode lead without issue.
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