What Serial Port Monitor customers say
My best friend Serial Monitor
We make extensive use of this software utility to monitor and log serial port traffic when testing third-party programs. It’s a great tool for troubleshooting serial protocols or reverse-engineering undocumented functions in software products.

Monitoring Ant and COM port
I was looking for a lightweight app for incoming and outcoming data monitoring between Ant and COM port with a hardware device attached to it that communicates with the software.
Serial Port Monitor worked just fine for that purpose.

Useful RS-232 Terminal
This terminal is very straight forward and useful for opening COM ports, monitoring ASCII data, and exporting the file.

Simple monitoring and exporting of ASCII data
This is a simple and straight forward monitoring SW that allows you to open COM ports, monitor, and export the data. It addresses my needs perfectly.

A great tool for serial port monitoring
Serial Port Monitor is an essential tool for debugging and monitoring devices that use serial port.
I have used it for analyzing the data messages from Radon sensors.
