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Serial Port Sniffer ActiveX
Sniff and edit serial port data

Serial Port Sniffer ActiveX Control is a powerful and feature-rich ActiveX component, that is able not only fully monitor serial ports, but also edit data flows.

Its logic is very simple: our component creates additional virtual COM port in the system with the same name as the monitored serial port. All data flows go through created virtual COM port and are logged into a special document. Meanwhile, you can easily substitute any chunks of data with your own to influence the process of serial port communication the way you need.

Serial Port Sniffer ActiveX drivers successfully passed Windows Hardware Quality Labs tests and are digitally certified by Microsoft

With Serial Port Sniffer ActiveX you can

  • Take full control of all signal lines

    All signal lines (DTR, RTS, CTS, RTS) are supported. Moreover, the component's events include all of these lines state changes.
  • Sniff data flows between serial port and application

    With Serial Port Sniffer ActiveX you will be able to fully monitor data flows between application and serial port. It gives you the possibility to detect control lines changes, handflow, baudrate and ring state changes, and track timeout updates. Serial Port Sniffer Components methods allow you to check whether the port is being sniffed, open the serial port to be sniffed and close the port after sniffing.
  • Take full control over the monitoring process

    Serial Port Sniffer ActiveX gives you the ability to influence the monitoring process. As all transmitted data is intercepted in the virtual port, created by our component, you can easily substitute it with any data characters and commands of your own to get deeper into the monitoring process.

Features

Monitor and edit serial data streams directly from your application
Unique ActiveX Control - no need to use additional software for monitoring
Wide selection of supported events, methods and properties
Control lines support (DTR, RTS, CTS, RTS)
Usage examples for Microsoft VC++ and Microsoft Visual Basic included
No reboot required during installation and implementation
Serial Port Sniffer ActiveX drivers successfully passed Windows Hardware Quality Labs (WHQL) tests and are digitally certified by Microsoft

Thinking about integrating our functionality into your own industry-specific solution?

Eltima Port Virtualization Technology is just what you need. Thousands of successful companies worldwide have already experienced the undeniable benefits and advantages of powering their software and hardware products with our advanced technology.

Eltima Port Virtualization Technology

Compare Serial Monitor AX and Serial Sniffer AX

# Feature Serial Monitor AX Serial Sniffer AX
1 Change control chars +(OnIrp)
2 On/Off break +(OnIrp)
3 Read data substitution
4 Write data substitution
5 Exact events timestamps
6 Read 6 Kb of data(sec) 6 10
7 Stop sniffing when port is opened
8 Start sniffing when port is opened
9 Detect Ring
10 Write to port

Custom Software Development

Whether you’re looking at modifying functionality of our current software solutions or developing a new product from scratch, we can make it happen!

What customers say

  • Simply Eltima’s Serial Port Sniffer is the most powerful solution I’ve ever tried to automatically mount a gateway between physical port and simulated port and take full control of it. Eltima’s ActiveX mounts easily a gateway between physical port and emulated serial port from an old software. I can now delete, replace, etc. information and it works really fine.
    Àlvar Vaïllo Anglès, Spain

Overall rating 4.7
based on 80 reviews

Let's get started

Serial Port Sniffer ActiveX for Windows
Demo version limitations
• Reminder when invoking Start() method.
System Requirements
Windows 2000, Windows (32-bit and 64-bit): XP/2003/2008/ Vista/7/8/10, Windows Server 2012
Latest Update
Version 5.2.90 (11th Oct, 2012) Release notes