Surgical needle set electrode available in an assortment of sizes 1/16 standard . & 1. 2mm special . Material stainless steel 316, Quality, Special surgical steel . A high frequency current flows through active electrode ac source cell ruptured, Fumes or evaporates return path through dispersive electrode patient is included in circuit high, Resolution backlit lcd display of minimum 8 diagonally screen size displays spo2 values, Pr, Plethysmograph along with perfusion level indicator online graphical trend. Electrode set contain in loop shape triangle shapein 4, /6, /8, /10, /12, Mm o. D loop. Straight pointed. Pointed band. Ball point. Diamond shape. Or according to requirement. Autoclavabel reusable .