<a href="http://www.linkinstruments.com/mso19.htm" rel="nofollow">http://www.linkinstruments.com/mso19.htm</a><p>This has existed for a while and it's more accurate and most likely better tested. It's better suited to replace a lab oscilloscope, and a bit cheaper, but doesn't have the function generator or the other extra features mentioned for the Red Pitaya like the web interface