BIOPAC® Systems, Inc. Logo

Ag-AgCl Electrodes

Request More Info
Ag-AgCl 4 mm TP electrode
Part #: EL254, EL254RT, EL254S, EL258, EL258H, EL258RT, EL258S

Silver-silver chloride (Ag-AgCl) electrodes provide accurate and clear transmission of surface biopotentials. EL250 series reusable lead electrodes are suitable for most applications (ECG, EEG, EGG, EMG, EOG, and ERS recordings.)

  • Use EL258 (8 mm recording diameter) for most applications
  • EL254S and EL258S are shielded electrodes; best used as recording electrodes.
    • BioNomadix units have no active drive circuit for shielded leads.
  • EL258H features a 2 mm gel injection hole, useful for EEG monitoring; use as both recording and reference electrodes.
  • Use EL254 (4 mm recording diameter) when closely spaced biopotentials are required
  • Use EL254-RT or EL258-RT for animal MRI setups

EL250 series reusable electrodes are permanently connected to robust and pliable leadwires (1 mm OD). The leadwires terminate in standard Touchproof connectors. Unshielded electrodes terminate in a single Touchproof connector. Shielded electrodes terminate in two Touchproof connectors, one connects to the Ag-AgCl disk and the other connects to the leadwire shield.

See More...

BIOPAC data acquisition
View Spec PDF

Are You Looking for These?

Part #: N/A
Categories: Electrodes - Education, Electrodes - Research, MRI Magnetic Resonance Imaging - Research
Subcategories: Electrodes & Accessories - Research, Ag-AgCl Reusable - Education, Ag-AgCl Reusable - Research

Equivalents
With a different Platform

Details

Compatibility


 

The EL254 is unshielded and the EL254S is shielded.

For best signal performance use shielded electrodes (EL254S or EL258S) as recording electrodes and unshielded electrodes (EL254 or EL258) as ground or reference electrodes. Generally, for each Biopotential amplifier module, two EL254S or EL258S and one EL254 or EL258 are required.

Use reusable electrodes with adhesive collars and gel.

Reusable Ag/AgCl Electrode Features

BIOPAC EL250 series and EL650 series reusable electrodes incorporate a variety of features which improve biopotential recordings:

  1. Non-polarizable
  2. Sintered to increase electrode/electrolyte contact area
  3. Do not require chloriding
  4. Reusable via resurfacing
  5. High stability recordings, to DC, when used with chloride salt gel electrolyte
  6. Electrolyte gel cavity reduces artifact due to electrolyte/electrode motion and minimizes electrolyte dissipation/drying over long-term recordings

Support

Applications

Downloads/Resources

Knowledge Base

Recommended Items

Spotlight On
dsub9 to RJ11 jack

Output Adapter RJ11 to MP36

Use this DSUB9 to RJ11 jack Output Adapter to map the analog output of an MP36 or MP36R to an RJ jack; allows stimulators designed with HLT-compatible connections to be connected to MP36/36R units. Control the STMTHERM, or other stimulators that have RJ11 input cables.

View All
Latest News

New Citations | Twinkle, Twinkle, Little Star, Muscles & Computer Mice

Recent Studies using BIOPACs MP-Series (MP160, MP150) data recorders, ECG Amplifiers, and BioNomadix Wireless recorders: Singing style to infants Mothers around the world sing to infants, presumably to regulate their mood and arousal. Lullabies and playsongs differ stylistically and have distinctive goals. Mothers sing lullabies to soothe and calm infants, and playsongs to engage and […]

Neuromarketing Interview | How VR Can Improve Marketing Research

Alex Dimov, BIOPAC Sales Executive, was interviewed at the Neuromarketing World Forum by Inside Marketing to discuss how virtual reality can improve marketing research. Alex explains how VR can be used to present virtual iterations of a product to save time and money, and notes that measuring physiological responses adds lots of information for product and messaging […]

Read All
Request a Demonstration
Request a Demonstration