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
free BIOPAC webinar

New Smart Technology for the Lab

BIOPAC is announcing a new series of wired amplifiers. Learn about this new technology and how it can improve your research. Join the live webinar on Thursday, February 14 from 8:00-9:00 AM Pacific Time.

Register Now
Latest News

BIOPAC Launches New “Smart Amplifiers”

February 14, 2019 BIOPAC Systems, Inc. Goleta, CA USA New “Smart Amplifiers” make it easier than ever for life science researchers to get great data Fast Setup & High Performance Smart Amplifiers improve performance by amplifying the physiological signal close to the subject, which allows a high-level voltage connection to the data acquisition system and reduces noise artifact. […]

New Citations | Down’s Syndrome, Sleep Monitoring, Consumer Responses

BIOPAC provides software and hardware that allows research teams to record and analyze numerous body signals for physiological experimentation. Here are a few notable studies using BIOPAC equipment that cover Respiration, EEG, and Neuromarketing. Breathe Easy In this study, a mathematician from Simpson College uses her skills and students’ respiratory studies conducted with Biopac Student Lab equipment (BSL […]

Read All
Request a Demonstration
Request a Demonstration