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Gel for EDA (GSR)/SCR

Only GEL101A (a solution designed to mimic the salt concentration of sweat) should be used with reusable skin conductance (electrodermal activity) recording electrodes. GEL101A electrode paste is specially formulated with 0.5% saline in a neutral base. EL507A is a disposable dry electrode—add GEL101A for use in skin conductance measurements. The use of gels formulated for other biopotential measurements leads to an overestimate of the tonic skin conductance level and violates standard recommendations for methods of monitoring electrodermal activity.

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