AI ENGINE Feedback Function The NSK iPiezo engine supplies the appropriate power to the tip depending on the condition of the tooth surface. iPiezo engine provides a stable frequency output without dropping the power, even when removing hard calculus. Auto Tuning Function The Auto Tuning Function provides stable frequency to the tip at the selected power range. It allows the operator to feel the power output which ensures the optimum result. Tip Line-up NSK Offers A Wide Choice of Air Scaler Tips For Clinical Applications. Compact Varios 370 has been especially developed to offer a compact, portable control unit allowing easy installation into any dental unit. It is simple to operate and suitable for a variety of clinical procedures, Slide Control Unit Holder is available for various install positions. Setting Varios 370 Units Installation Examples