Dense array EEG (dEEG) Systems

EGI makes working with 128 or 256-channel of EEG simple. The HydroCel Geodesic Sensor's elastic tension structure and electrolyte based application are a quick fit with a 10-15 minute application time. Net Station software for acquisition, review, and analysis was designed for dEEG applications with graphics and data handling to suit your research needs.

Net Amps 300

The Net Amps is a low noise amplifier that connects EGI Nets to the data acquisition computer to filter, measure, and transfer digitized EEG signals in real time.

• Acquisition: 32, 64, 128, or 256 EEG channels.

• Coupling: DC.

• A/D converter: 24 bits.

• Digital inputs: 16 bits.

• Input impedance: 200 MΩ.

• Sampling rate: up to 20,000 Hz for 256 channels.

• Amplifier noise: 0.7 μV RMS/1.4 μV pp.

• Dynamic range: ±200 mV.

• Precision: 70 nV/bit.

• Common mode rejection: 90 dB.

• Isolation mode rejection: 120 dB.

HydroCel Geodesic Sensor Net (HCGSN) 120

Comfort: EGI's HCGSN 120 does not require any scalp preparation or abrasion making it ideally suited for special populations.

Fit: With sizes ranging from infant through adult and configurations for 32, 64, 128, and 256-channels, researchers can find the right fit for their participants and their budget.

Uses: The HCGSN 120 is available for both short (1-2 hour) and long (12-24 hour) recordings. Use the HCGSN 120 for upright or recumbent recordings with saline-based or gel-based electrolytes.

Design: The unique soft pedestal design of the HydroGel Hydrating Skin Interface Chamber® creates a sealed microenvironment, hydrating the skin and creating an interface between the skin and the electrode.