g.Electrodes: Specs & Features

g.Electrodes - active and passive biosignal electrodes for g.EEGcap and g.GAMMAcap

g.tec's active and passive biosignal electrodes for g.GAMMAcap 

g.GAMMAsys is a high-performance active and passive electrode system for non-invasive electrophysiological derivations such as EEG, EMG, ECG, EOG and other signals. Active electrodes have an additional ultra-low noise pre-amplifier located inside the electrode. The system is designed for use with g.USBamp, g.HIamp, g.BSamp and g.MOBIlab+. The active electrodes work in a frequency range from 0 - 10 kHz (DC) or 0.1 Hz - 10 kHz (AC). The active and passive electrodes can be used with all g.tec EEG caps.

The system avoids or reduces artifacts and signal noise resulting from high impedance between the electrode(s) and the skin (e.g. 50/60 Hz coupling, artifacts caused by electrode or cable movements, distorted signals or background noise). 

g.tec provides various active and passive biosignal electrodes. Passive electrodes are equipped with a 1.5 mm DIN touch-proof safety connector and are plugged directly into the amplifier's input sockets or into an electrode connector box fitting to the amp. All active electrodes are equipped with 1 mm 2-pin touch-proof safety connectors and are plugged into g.GAMMAbox and g.SAHARAbox which is connected to the amplifier via an appropriate connector cable.

We use mainly high-purity gold (Au), chlorided silver (AgCl) and sintered Ag/AgCl electrode materials. Gold electrodes are very robust and easy to maintain and provide a very good signal quality at frequencies above 0.1 Hz (not suitable for DC recordings). AgCl and Ag/AgCl electrodes provide excellent signals, lowest polarization and drift and can be used for DC recordings if desired. We do not use other materials such as tin or stainless steel, as these materials may cause lower signal quality in terms of drift, polarization and noise.

We recommend using electrodes with gels, creams or pastes provided by g.tec. All our electrodes have been tested with these products. Other products can be used, of course, but performance cannot be guaranteed.

Product Highlights

  • best signal quality for your research
  • standardized connectors for active and passive systems
  • easy replacement and placement of single electrodes
  • special electrode gel, abrasive gel and paste available for highest performance
  • suitable for EEG, EOG, EMG, ECG and other electrophysiological recordings

More Product Details

Electrodes for use with g.GAMMAcap

g.SCARABEO

active ring electrode, can be used with g.GAMMAcap2 and electrode holder ring (EEG) or with adhesive washer (ECG, EMG, EOG); g.SCARABEO electrode holder ring (1087) included; sintered Ag/AgCl ring (for DC recordings), size: 16 x 10 x 5 mm, 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, connector color: grey

g.SCARABEO 'Z'

active ring electrode to be used for channel 1 with g.HIamp to enable impedance measurement, can be used with electrode holder ring and g.GAMMAcap2 (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl ring (suitable for DC recording), remains in the cap for cleaning, size: 16 x 10 x 5 mm, 125 cm lead, connector color: black

g.SCARABEOgnd

passive ground ring electrode, can be used with electrode holder ring and g.GAMMAcap2 (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl ring (for DC recordings),size: 16 x 10 x 5 mm, 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, connector color: yellow

g.SCARABEO electrode holder ring

holder ring for the g.SCARABEO, fits for g.GAMMAcap2; 10 pcs/pkg

g.SCARABEO cleaning brush set

2 brushes for cleaning g.SCARABEO

g.SCARABEO and NIRS

The g.SCARABEO electrode is compatible with the Shimadzu NIRS system.

g.SAHARAelectrode (7 mm)

active dry electrode, 8 gold-alloy coated pins, available as standard version (7 mm), 19 mm diameter, clip connector on top to connect to g.SAHARAclip, color: orange

g.SAHARAelectrode (16 mm)

active dry electrode, 8 gold-alloy coated pins, available as long pin version (16 mm), 19 mm diameter, clip connector on top to connect to g.SAHARAclip, color: orange

 
g.LADYbird

active ring electrode, can be used with g.GAMMAcap (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl crown (for DC recordings), 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, color: red

 
g.LADYbird 'Z'

active ring electrode to be used for channel 1 with g.HIamp to enable impedance measurement, can be used with g.GAMMAcap² (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl crown (suitable for DC recording), 125cm lead, remains in the cap for cleaning, color: black

g.LADYbirdGND

passive ground ring electrode, can be used with g.GAMMAcap (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl crown (for DC recordings), 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, color: yellow

g.LADYbirdPASSIVE

passive ring electrode, can be used with g.GAMMAcap (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl ring (for DC recordings), 125 cm lead, 1.5 mm safety connector, remains in the cap for skin preparation and cleaning

 
Ag/AgCl passive earclip

passive earclip electrode (reference), 2 sintered Ag/AgCl crowns, 125 cm lead wire; 1.5mm safety connector, color: blue

 

Other Electrodes

g.SAHARAclip

active clip connector for use with g.SAHARAelectrode, 125 cm lead, 2-pin safety connector, color: orange

g.ACTIVEclipREF

active clip connector (reference) for use with disposable electrodes, for g.SAHARA or ECG/EMG/EGG, 125 cm lead, 2 pin safety connector, color: blue

g.ACTIVEclipGND

passive ground clip connector for use with disposable electrodes, for g.SAHARA or ECG/EMG/EGG, 125 cm lead, 2 pin safety connector, color: yellow

g.GAMMAclip

active clip connector for use with disposable pre-gelled adhesive electrodes for ECG/EMG/EGG/…, 150 cm lead, 2-pin safety connector, color: red

g.GAMMAearclip Au

active gold electrode earclip (reference), high-purity gold crown, 125 cm lead, 2-pin safety connector, color: blue

g.GAMMAearclip Ag/AgCl

active earclip Ag/AgCl electrode (reference), sintered Ag/AgCl crown, 125 cm lead, 2-pin safety connector, color: blue

Ear-clip electrode Au

gold; electrodes clip on to the earlobes; 2 pieces (one for each ear)

EOG sintered electrode, 14 mm

sintered Ag/AgCl electrode; diameter 14 mm; cable length: 150 cm, safety connector

ECG electrode cable with clip lead

3 leads/piece; 150 cm length; for disposable electrodes

finger electrodes for g.GSRsensor

output 2x 1.5mm touch proof connector

Adhesive mastoid electrodes

disposable adhesive mastoid electrodes, diameter 24mm, 50 pcs, for use with g.SAHARAclipREF and with g.SAHARAclipGND, no gel remains on the skin after use

disposable Ag/AgCl electrodes

for EMG, ECG, 50 pieces, pre-gelled

double-sided adhesive washers

500 pieces; for 14 mm reusable EOG Ag/AgCl electrodes

electrode cable sleeve for g.GAMMAcap2

special zip tube for covering cables

 

g.SAHARAbox, g.GAMMAbox & connectors to the amplifiers

g.SAHARAbox for 16 channels

power supply & driver/interface box for 16 g.SAHARAelectrodes, for usage with all g.tec amplifiers, frequency range 0.1 Hz - 40 Hz

g.GAMMAbox for 16 channels, AC or DC coupled

power supply & driver/interface box for 16 active electrodes for use with g.USBamp or g.BSamp and g.MOBIlab+, works with every 2-pin safety connector electrode

g.EXTENSIONbox für g.GAMMAbox

for additional 16 active electrodes; without ground and reference

Active Electrode Driver Box Connector for g.USBamp

connector cable between the g.USBamp (system connector) and the g.GAMMAbox/g.SAHARAbox; 25 cm lead

Active Electrode Driver Box Connector for g.MOBIlab+ EEG

connector cable between the g.MOBIlab+ 8 channel EEG version (system connector to 8 EEG channels) and the g.GAMMAbox/g.SAHARAbox; 40 cm lead

Active Electrode Driver Box Connector for touch-proof medical connectors

connector cable between 1.5 mm touch proof medical connectors (monopolar) and the g.GAMMAbox/g.SAHARAbox; 40 cm lead

Customized Active Eletrode Driver Box Connector

connector cable between a third party amplifier and the g.GAMMAbox/g.SAHARAbox

 

Cables

shortcut jumper cable for 2 channels

shortcut cable for 2 channels, medical safety connector; can be daisy chained

shortcut cable

for 3, 7 or 15 medical safety sockets of 1,5 mm, highly flexible cables

shortcut jumper cable for 2 channels, extra long

shortcut cable for 2 channels, medical safety connector; length 500mm ; can be daisy chained; available colors: blue, red, yellow

 


See some related products

Hardware and Accessories

product no.: 0241 read more g.Zcheck — portable electrode impedance measurement system

Electrodes and Sensors

read more g.GAMMAsys: Specs & Features — active electrode system for EEG/EMG/EOG/ECG
read more g.SAHARA: Specs & Features — active dry EEG electrode system

Consumables

product no.: 1021 read more g.GAMMAgel — special electrode gel for active electrodes (can also be used for passive electrodes), in 200 g doser can; no syringe included
product no.: 1060 read more g.GAMMAgelSET — 10 cans of special electrode gel for active electrodes (can also be used for passive electrodes), in 200 g doser can, with special syringe for easy application
product no.: 1050 read more g.GAMMAcream — special electrode cream for long-term recording with active electrodes (can also be used for passive electrodes), in 200 g doser can, with special syringe for easy application
product no.: 1030 read more Elefix — high viscosity adhesive electrode paste for passive electrodes, suitable for DC and long-term recordings, 400 g
product no.: 1031 read more abrasive gel — special conductive abrasive gel for skin preparation for ultra-low impedance recordings, suitable for DC recordings, 500 g
product no.: 1042 read more double-sided adhesive washers — 500 pieces; outer diameter 20 mm, inner diameter 5 mm, for reusable EOG Ag/AgCl electrodes
product no.: 1043 read more double-sided adhesive washers — 500 pieces; 20 mm outer diameter, 8 mm inner diameter for g.LADYbird or g.SCARABEO electrodes
product no.: 1032 read more disposable Ag/AgCl electrodes — pregelled, adhesive electrodes for EMG, ECG; 50 pcs/package, with clip/snap contact

Related Media and Documents

Product Manuals/Handbooks

g.GAMMAsys

log in required
application/pdf
gGAMMAsys_ActivePassiveComparison — 04/17/2014 — 714.33 kB