About

About CEIWEI

CEIWEI Software Technology builds serial communications tools for engineers who have to prove what a device actually sent.

The company

CEIWEI Software Technology

We build one product line and support it ourselves.

CEIWEI CommMonitor is a serial port monitor for Windows. The 2026H1 build is a rewrite in Delphi 12 for Win64: native code, no managed runtime, and a kernel filter instead of a port takeover.

The product exists because the usual serial monitor opens the port it wants to watch, which means the application under investigation has to stop. Everything here follows from not accepting that trade.

Product
CEIWEI CommMonitor 2026H1
Subtitle
Serial Port Monitor for Windows
Current version
14.0.0.26002
Platform
Windows 10 / 11 x64

Contact

Talk to the people who build it

There is no call centre and no ticket queue. Mail reaches the developers.

  • Technical support and bug reports: send the version from --version and the steps that reproduce the problem.
  • Licensing and quotes: tell us the number of machines and whether they can reach the Internet.
  • Protocol requests: describe the protocol and, if you can, attach a capture of it.

jfyes@hotmail.com

See what it does first

Download the current build and capture a port your own software is using.