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.

