The Net Shop

GSN 200

HydroCel GSN

Geodesic Sensor Nets

EGI offers two versions of the Geodesic Sensor Net: the classic GSN 200 and the new streamlined HydroCel GSN.

Both come in 256-, 128-, and 64-channel configurations, sized from neonate to adult. The HydroCel GSN is also available in a 32-channel model.

HydroCel GSN

• EGI HCGSN Size Chart (.pdf)


• 256-Channel Sensor Layout (.pdf)
• 128-Channel Sensor Layout (.pdf)
• 64-Channel Sensor Layout (.pdf)
• 32-Channel Sensor Layout (.pdf)

GSN 200

• EGI GSN 200 Size Chart (.pdf)


• 256-Channel Sensor Layout (.pdf)
• 128-Channel Sensor Layout (.pdf)
• 64-Channel Sensor Layout (.pdf)

Demo Geodesic Sensor Nets

A basic Net without electrodes or sponges. We recommend it as a method of preparing children for the Net application process before they enter the lab. Available in all Net sizes.

HydroCel Electrolyte Formulations

EGI offers two HydroCel electrolyte formulations:

• HydroCel Saline: EGI's classic potassium chloride saline and surfactant solution for 2-hour recordings. For use with GSN 200s and HydroCel GSNs with sponge inserts.

• HydroCel HS: EGI's hydrogel formulation for 12-hour recordings. For use with HydroCel GSNS without sponge inserts.

Potassium Chloride

Two (2) lbs of potassium chloride crystals.