**1 Year Warranty** Refine built in ultra sonic scaler N3000L. Specifications: - Model: N3000L. - LED Detachable Handpiece. - Endo, Scaling & Perio Function. - Automatic Frequency Tracking. - Real-Time Feedback. - Main Unit Input: 24VAC 50Hz. - Frequency: 28KHz±3KHz. - Water Pressure 0.1bar-5bar(0.01MPa-0.5MPa).