**Excluding Delivery** - Analog electronics control system. - Built-in intelligent simultaneous function. - Inter-locking system and anti-backflow mechanism. - Multifunctional foot pedal control system. - Comprehensive protection mechanism. - Touch control panel. - 5 sets of intelligent memory positions can be set in advance and the control of the chair position, on/off of the operating light, cup filling and bowl rinsing can be done with one button. - The inter-locking system of the dynamic instruments can greatly prevent the injury and improve the efficiency of dentists. - The on and off of all the dynamic instruments are controlled by photoelectric sensors.