Electrodes and Cables

g.GAMMAsys and g.EEGcap are high-performance active and passive electrode systems 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 biosignal amplifiers, like g.BSamp, g.USBamp and with g.MOBIlab+.  Electrodes are made of sintered Ag/AgCl and work in a frequency range of 0 - 100 kHz. The active electrodes can be used with all g.tec EEG caps as an alternative to the passive standard electrodes.
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). No modifications are required for the biosignal amplifier which can be used with or without the active electrode system.

 

Electrodes for use with g.GAMMACap

g.GAMMAcap uses active or passive ladybird or butterfly electrodes that are inserted into the specific electrode position. The gel is inserted through the hole in the middle of the electrode. The ring electrode g.LADYbird normally stays inside the cap and is also cleaned together with the cap. A big advantage is therefore the montage speed. The g.BUTTERFLY electrode can be removed after each measurement.

The caps has also electrode labels to easily identify positions.

g.GAMMAcap
g.LADYBIRD
g.LADYbird is inserted into the cuts in the g.GAMMAcap. The electrodes can be removed to configure a new montage by yourself.
g.BUTTERFLY
g.BUTTERFLY electrodes are faster to insert and to remove. The special shape allow to use the electrode for many different materials.
g.GAMMAring

g.LADYbird (Art.No.: 1033):
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.GAMMAringGND

g.LADYbirdGND (Art.No.: 1034):
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.GAMMAringPassive

g.LADYbirdPASSIVE (Art.No.: 1035):
passive ring electrode, can be used with g.GAMMAcap (EEG) or with adhesive washer (ECG, EMG, EOG), sintered Ag/AgCl ring (for DC recordings), 120 cm lead, 1.5 mm safety connector, remains in the cap for skin preparation and cleaning
g.GAMMAfix

g.BUTTERFLY (Art.No.: 1036):
active electrode, for use with g.GAMMAcap, high-purity gold crown, 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, color: red
g.GAMMAfixGND

g.BUTTERFLYgnd (Art.No.: 1037):
passive electrode, for use with g.GAMMAcap, high-purity gold crown, 125 cm lead, 2-pin safety connector, remains in the cap for cleaning, color: red

Electrodes for use with g.EEGcap

g.EEGcap uses screwable active or passive electrodes which are inserted into the specific electrode position and are locked with a 90° turn. The gel is applied to the skin before the electrode is inserted. After the measurement the electrodes are removed. A big advantage is that the insertion deepness can be adjusted.

g.EEGcap

g.EEGelectrode Au (Art.No.: 1001):
screwable passive gold EEG electrode, suitable for g.EEGcap, 100 cm lead, 1,5 mm safety connector, produced for long-term use and maintenance free, color: green, black, red, white, yellow


 

g.EEGelectrode Ag/AgCl (Art.No.: 1004):
screwable passive Ag/AgCl EEG electrode (for DC recordings), suitable for g.EEGcap, 100 cm lead, 1,5 mm safety connector, produced for long-term, must be chlorinated, color: green, black, red, white, yellow

g.ACTIVEelectrode (Art. No.: 1015):
screwable active EEG electrode, fits into standard g.EEGcaps, sintered Ag/AgCl crown (for DC recordings), 125 cm lead, 2-pin safety connector, color: red

g.ACTIVEground (Art.No.: 1018):
screwable passive ground electrode, fits into standard g.EEGcaps, sintered Ag/AgCl crown (for DC recordings), 125 cm lead, 2-pin safety connector, color: white

Other Electrodes

g.GAMMAearclip Au (Art.No.: 1038):
active gold electrode earclip (reference), high-purity gold crown, 125 cm lead, 2-pin safety connector, color: blue

g.GAMMAearclip Ag/AgCl (Art.No.: 1039):
active earclip Ag/AgCl electrode (reference), sintered Ag/AgCl crown, 125 cm lead, 2-pin safety connector, color: blue

g.GAMMAclip (Art.No.: 1024):
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.GAMMAclipREF (Art.No.: 1024):
active clip connector (reference) for use with disposable pre-gelled adhesive electrodes for ECG/EMG/EGG/…, 150 cm lead, 2-pin safety connector, color: blue

g.GAMMAclipGND (Art.No.: 1025):
passive ground clip connector for use with disposable pre-gelled adhesive electrodes for ECG/EMG/EGG/…, 150 cm lead, 2-pin safety connector, color: yellow
EEG-electrode Au (Art.No.: 1002):
10 pieces; disk electrodes; electrode length 150 cm; 10 mm diameter
Ear-clip electrode Au (Art.No.: 1101):
gold; to apply at the earlobes; 2 pieces (one for each ear)

EOG sintered electrode, 14 mm (Art.No.: 1044):
sintered Ag/AgCl electrode; diameter 14 mm; cable length: 150 cm, safety connector
ECG electrode cable with clip lead (Art.No.: 1009):
3 leads/piece; 150 cm length; for disposable electrodes

finger electrodes for g.GSRsensor (Art.No.: 20312):

disposable Ag/AgCl electrodes (Art.No.: 1032):
for EMG, ECG, 50 pieces, pre-gelled

double-sided adhesive washers (Art.No.: 1042):
500 pieces; for 14 mm reusable EOG Ag/AgCl electrodes

g.GAMMAbox & connectors to the amplifiers

g.GAMMAbox for 16 channels (Art.No.: 1016a):
power supply & driver/interface box for 16 active electrodes for usage with g.USBamp or g.BSamp, works with every 2-pin safety connector electrode

g.GAMMAbox for 8 channels (Art.No.: 1016b):
power supply & driver/interface box for 8 active electrodes for usage with g.MOBILab+, g.USBamp or g.BSamp, works with every 2-pin safety connector electrode

g.USBampGAMMAconnector (Art.No.: 1019a):
connector cable between the g.USBamp and the g.GAMMAbox
g.MOBIlab+GAMMAconnector (Art.No.: 1019b):
connector cable between the g.MOBIlab+ and the g.GAMMAbox
 
g.BSampGAMMAconnector (Art.No.: 1019c):
connector cable between the g.BSamp and the g.GAMMAbox
 
g.CustomizedGAMMAconnector (Art.No.: 1019d):
connector cable between a third party amplifier and the g.GAMMAbox
 
g.EXTENTIONbox für g.GAMMAbox (Art.No.: 1022):
for additional 16 active electrodes; without ground and reference

Cables

shortcut jumper cable for 2 channels (Art.No.: 0223):
shortcut cable for 2 channels, medical safety connector; can be daisy chained
shortcut cable (Art.No.: 0224, 0215, 0218):
for 3, 7 or 15 medical safety sockets of 1,5 mm, highly flexible cables

Gels and Pastes

abrasive gel (Art.No.: 1031):
to prepare the skin before EEG measurements; 500 g

"Elefix" (Art.No.: 1030):
electrode gel for optimal low impedances; 400 g

g.GAMMAgel (Art.No. 1021):
special highly conductive high-viscosity electrode gel for g.GAMMAsys active electrodes, water-soluble, non-abrasive, non-greasy, non-irritant, non-corrosive, CE class 1 product, in doser can, 200g, easy insertion through electrode holes

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