These snap electrodes provide the same signal transmission as reusable electrodes, with added convenience and hygiene. Each peel-and-stick electrode is pre-gelled and designed for one use only. Use disposable snap electrodes with the LEAD110 series electrode leads (shown above). For best performance, use the LEAD110S shielded leads for your recording electrodes and the LEAD110 unshielded lead for your ground or reference electrodes. Paired (Dual) Electrodes These fixed spacing, paired electrodes are primarily used for peripheral stimulation and recording for nerve conduction measurements. These paired electrodes are also useful for cardiac output, electrical bioimpedance and general-purpose EMG measurements. The pre-gelled electrode pairs are placed 41mm apart (center to center) on 41mm x 82mm x 1.5mm thick foam. Small Stress Test Electrodes These flexible, foam-backed, strong-adhesive electrodes are most appropriate for short-term recording applications where the subject may be in motion. The 38mm diameter allows closely placed electrodes which may be necessary for multi-channel ECG, EGG, EMG or EOG recordings. Electrodes are pre-gelled and mounted on 1.5mm thick foam. Long-term Recording Electrodes Most appropriate for long-term biopotential measurement recording sessions, these pre-gelled electrodes incorporate a small (41mm) diameter backing that resists moisture. The electrodes include an adhesive solid gel that adheres well to the skin but leaves no residue when removed. General-purpose Electrodes These economical, pre-gelled electrodes are most suitable for short-term recordings. The small (35mm) diameter backing allows close electrode placement where necessary, and a slightly less firm adhesive allows “ouchless” removal. The electrodes incorporate liquid gel and are high chloride for quick, accurate readings.