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Gereonics-Ear-Clip-Silver/Silver-Chloride Electrodes
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18" Ear Clip Silver/Silver Chloride by Gereonics

Item #: ELT-Ger18
Availability: In Stock
Usually ships In 1-3 Business Days
Price: $49.00




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    18" Silver/Silver-Chloride Special Cup Ear Clip EEG Electrode available in Blue and Black - Miniature and light weight 11mm w/ 3mm cup cavity for gel. Biopotential skin electrodes suitable for  EEG,  ECG, EOG, ENG, EMG,  GSR, and evoked potentials

    Gereonics EEG electrodes transmit stable and clean signals for precise EEG measurements. The plastic encased silver/silver chloride electrode is designed as a direct replacement for a 10mm gold cup electrode and has a very low DC offset potential, minimal motion artifact and good low frequency response.

    RUGGED DESIGN TO REPLACE THE 10mm GOLD CUP ELECTRODEGereonics EEG electrode bodies are manufactured using FDA quality high impact plastic, which is chemically resistant to collodion. The body is 12mm in diameter and has a 2mm hole in the top for gel addition. The electrodes are terminated in a 1.5mm (.060in) female blue safety connectors meeting the DIN standard.

    LOW DRIFT AND MOTION ARTIFACT DESIGN The specially compounded sensing element of silver/silver chloride is the key to precision low drift design. As a result, offset voltage and polarization-two key performance parameters, are unsurpassed. The electrodes never need to be chloridized. Since only the plastic body touches the skin, motion artifacts are significantly reduced compared to metal cup electrodes.

    ECONOMY/PERFORMANCEGereonics EEG silver/silver chloride electrodes can be used many dozens of times and maintain their quality performance characteristics. Performance is significantly superior to gold and silver cup electrodes.

    GEREONICS ELECTRODES AND STANDARDS

    Gereonics silver/silver chloride (Ag/AgCl) electrodes are made from very finely powdered high purity silver and silver chloride. They are mixed in a specific ratio and compacted into the electrode body at very high pressures. The resulting pellet is relatively thick (0.7 to 1.0mm) and never needs to be rechloridized, because it is a homogenous mixture. This is unlike electrodeposited Ag/AgCl which is very thin and needs renewal after multiple uses. The only American standard for electrodes is ANSI EC-2 for "Pregelled EEG Disposable Electrodes." The electrical performance requirements, test procedures and test circuity are set forth in this standard. Specific electrical tests are AC Impedance, DC Offset Voltage, Combined Offset Instability and Internal Noise, defibrillation Overload Recovery and Bias Current Tolerance. Gereonics electrodes test very significantly better than the specifications for each of these tests. All Gereonics electrodes are 100% tested for Continuity and DC Offset Voltage.

    CLEANING ELECTRODESImmediately after removing the electrode, wash out the gel or cream using distilled or deionized water. A plastic wash bottle with spray tip is very suitable. Never use tap water. A cotton swab can be used to remove the main bulk of the gel or cream. Soak the electrode in a mild saline solution or distilled or deionized water until the next application. Your lab or hospital may have normal saline solution available in prepared bottles. Do not let the old gel or cream dry or harden the cavity.

    OTHER CLEANING TIPSIf electrodes are used only occasionally, a brown coating may form over the sensing element. This can be removed by wiping with a mild ammonium hydroxide solution r by lightly abrading with a very thin strip of 200 mesh emery cloth. Electrodes will turn black if continuously exposed to bright light. The finely divided silver in the electrode pellet oxidizes to silver oxide (black) much like a photographic negative. The electrode will perform normally even when the appearance is almost jet black. Cleaning by abrasion to remove the oxide layer is appropriate, however. Store electrodes not in use in a dark drawer or a closed opaque box.
    Electrodes can be permanently damaged or poisoned when only small amounts of bromide, sulfide and some other metal ions are present. Do not expose the electrodes to tap water, EEG pastes containing abrasive clays, miscellaneous soap solutions or abrasive cleaners.

    STERILIZATIONGereonics silver/silver chloride electrodes may be sterilized using the low temperature peroxide sterilization method. This utilizes the STERRAD 100 Sterilizer from Advanced Sterilization Products, a Johnson and Johnson Company.

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    EEG Sales LLC offers a full and comprehensive list of quality products and supplies at competitively discounted prices for practitioners of Neurofeedback and Biofeedback. EEG Sales is an authorized distributor for Thought Technology and an authorized reseller for BrainMaster Technologies. We are proud to offer IMA Electronics hand-crafted electrodes and many of the finest equipment and supply brands available. Customer service and quality of product are top priorities with EEG Sales.

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