①.Large LCD Voltmeter
②. Sequential opening and reverse order closing
③.PASS button can open all channels at the same time
④. RS232 COM port access to central control (command control) or built-in software control
⑤. Interval time/timing time of each switch: default 1 second (set freely by software)
⑥. Cascade stacker ID: 0-255
⑦.Overcurrent protection
⑧. Support panel to control each channel independently (software setting control)
⑨. Optional power purification function (EMI professional grid filter)