Grael 4K PSG:EEG Amplifier

The Grael 4K is the most advanced amplifier on the market today. Compumedics’ flagship, high-definition EEG, sleep and research amplifier specified for the most demanding cognitive research or epilepsy/sleep diagnostics. Experience the new and more powerful Grael.

A single IP connection to the Grael amplifier provides both power and data transmission, making it very easy to set up the system at different locations in your department.

The Grael 4K system has CE Class IIa medical certification and FDA approval.

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Description

Over 25 years of experience in designing EEG and PSG amplifiers has culminated in the new Grael amplifier range – Compumedics’ most technologically advanced amplifier yet. Four new amplifiers specifically designed to fit your needs! The Grael 4K PSG:EEG Amplifier is the most advanced amplifier of them.

Key features

  • Amplifier can be used for wide range of applications including EEG, Evoked Potentials (ERP) and Sleep studies
  • Sampling Rates up to 4096 Hz
  • User selectable gain allows choice of lower noise or higher allowable DC offset (great for combining EEG with TDCS/TACS or TMS)
  • Combine multiple devices for more channels or group studies (hyperscanning)

Specifications Grael 4K PSG:EEG Amplifier

Max Number of Channels

60

EEG Channels

32

Bipolar Channels

8

Analog Inputs (HLI)

8

Extra Inputs

Inductive Bands (2), Respiratory Impedance, Pressure (1 single ended, 1 differential), Body Position, Event Button, Microphone, Integrated Light Sensor, Oximeter with Pleth Waveform

DC/AC

DC

Max Sampling Rate

4096 Hz

Sampling Rate (Hz)

256, 512, 1024, 2048, 4096

Bandwidth

DC-1150 Hz

Resolution

24-bit

Input Range

300mV to 3000mV (4 modes)

Sensitivity

18nV

Input Impedance

>100 MOhm

Common Mode Rejection (CMRR)

>100 dB

Noise (peak-to-peak)

<2 uV

Impedance Check

Yes

Trigger

8-bit TTL

TMS Compatible

Yes

tACS/tDCS Compatible

Yes

Device Synchronization

Includes PTP (precision time protocol) hardware to allow synchronizing multiple units for 64 (or higher) referential channels

Headcap Connector

Yes

Recording Interface

Ethernet

Power

Power Over Ethernet (PoE)

Medical Certification

CE Class IIa, FDA

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