1PCS LCUS-1 serial port USB control relay LCUS-2 PLC intelligent control #YT

1PC NEW LCUS-1 serial port USB control relay module LCUS-2 PLC switch #YT

1PC LCUS-1 type computer serial port USB control relay module LCUS-2 PLC #TT

1PCS HID no-drive USB control switch 1 way 5V relay PC intelligent control #YT

1PCS 2 serial port RS232 relay UART protocol DB9 port remote control switch #YT

1PCS 5V 2/4/8 Micro USB drive free computer control relay module PLC #YT

1PCS 2 serial port RS232 relay UART protocol DB9 port remote control switch #YT

1PCS 5V 2/4/8 Micro USB drive free computer control relay PLC control board #YT