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Download Serial Port Monitor

Serial Port Monitor by Eltima is a powerful software for RS232/RS422/RS485 port sniffing. The utility efficiently monitors serial data exchange between COM port devices and any Windows app, debugging PC connection with peripheral serial port devices. Solve issues with RS232/422/485 data communication control networks and devices, for running various tests for software and hardware solutions, etc.


Major benefits you will get:


  • Advanced filters and search
  • Export data options and professional built-in terminal
  • Easy-to-use interface
  • Flexible and user-friendly interface
  • Monitor and analyze Modbus protocol
  • Compare sessions with Playback feature