Free Serial Port Monitor
You can download Free Serial Port Monitor 3.31 from our software library for free. Free Serial Port Monitor is categorized as Development Tools. The size of the latest installation package available for download is 2.8 MB. This download was scanned by our built-in antivirus and was rated as malware free. This program was originally created by HHD Software.
From the developer:
Free software serial port monitor, Com Rs232 sniffer with communication packet data analyzer. This monitoring utility can spy, capture, view, analyze, test com ports activity performing com port connection and traffic analysis with data acquisition and control. You can use this system as device interface testing tool, modem data transfer viewer and so on.
You may want to check out more software, such as Serial Port Tester, Advanced Serial Port Monitor or Serial Port Monitor ActiveX Control DEMO Build 18.104.22.168, which might be related to Free Serial Port Monitor.