1Pcs Chip Isolated USB-RS485 RS422 RS232 Signal Converter Module Industrial Grade USB TO RS232/422/485 Magnetic Isolation(RS232-485 422(ISO))(Usb-Rs232(Ftdi Type))
220V Power Supply 4-20MA Input DC 4-20Ma Analog Signal Isolator 0-10V Converter 35mm Rail Installation(1 in 3 Out,4-20MA-220V-1-5V Output)(1 in 3 Out/4-20MA-220V-0-10V)