**1 Year Warranty** Specifications: - Model: N2000L. - LED detachable handpiece. - Scaling & periofunction. - Automatic frequency tracking. - Real-time feedback. - Main unit input: 24VAC 50Hz. - Frequency: 28KHz±3KHz. - Water pressure: 0.1 bar. - 5bar(0.01MPa-0.5MPa).