DIGITAL ABLATION unit is a scaler controlled by a microprocessor, equipped of automatic audjusment system, which allows to adapt the frequancy of the vibrations to the real charge of resonance, principally determined by the quantity of supplied water, by the used tip and grade of usury. The main characteristics of the product are the following: the hand piece is autoclavable at 121°c. The points are interchangeable, and autoclavable. The frequency scanning from 30 Khz to 45 kHz, effected to low power from the beginning of each acti- vation, allows to determine the resonance frequency of the hand-piece. The scaler is equipped with the followig accessories: one set of three tips for ablation ( type A - B and C)and a special tool for the closing up of the tips.