Skin Conductance Sensor
Skin Conductance Flex/Pro Sensor SA9309M
Price $250

In Stock -Ships within 2 - 3 business days
Shipping Cost - 1 @ $25 -Additional $4 ea.
Shipping Method - 2nd Day FedEx
International Ship Method - Global Exp

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Skin conductance (SC) is a measure of the skin's ability to conduct electricity. A tiny electrical voltage so small it is not felt is applied through two electrodes, usually strapped to two fingers of one hand, in order to establish an electric circuit where the client becomes a variable resistor. The real time variation in conductance, which is the inverse of the resistance (an alternative measure of the Galvanic Skin Response), is calculated. Clinically, changes in SC reflect changes in the activity of the sympathetic nervous system. As a person becomes more or less stressed, the skin's conductance increases or decreases proportionally. Skin conductance, galvanic skin response and electro-dermal response (EDR) are different terms for similar physiological measures.

The standard measurement unit for conductance is called Siemens. Skin conductance is measured in micro-Siemens. Some biofeedback systems display skin conductance in micro-mhos (μm) - a mho is the inverse of an ohm, which is the measure of resistance. These two measures, μS and μm, are equivalent. Normal readings, for skin conductance, in a relaxed state are around 2 μS, but readings can vary greatly with environmental factors and skin type.

Skin Conductance Flex/Pro Sensor Specifications (SA9309M)
Size without electrode leads (approx.) - 3.5 cm (1.4")
Size with electrode leads (approx.) - 15 cm (6.0")
Cable Length (approx.) - 127 cm (50")
Weight (approx.) - 25 g (1 oz)
Signal Input Range - 0 – 30.0 μS
Accuracy - ±5% and ±0.2 μS

We have several types of cable extenders like the T8740 - DIN cable extender cable and the professional biofeeback systems they connect to.

USA Federal law restricts this device to sale by or on the order of a physician or any other practitioner licensed by the law of the state in which he or she practices to use or order the use of this device.