This oscilloscope was bought about a year ago as I was getting into amplifier repair, I no longer have time for that hobby and am selling all my equipment including a 465B Tek and some HP meters. This is also great for car audio, you can set sound levels and check for distortion on amps before you can hear it to get the best sound possible. I have tested this out and used it and as far as I can tell everything works on this as it should, I am not not an expert though so you can test out any functions you need to before buying or tell me how to check if possible. I do not have any probes with me or any other accessories. Asking $300 FTF (LOWERED to $280, again lowered to $235 (Dallas-Richardson TX) or $320 (LOWERED to $300, lowered again to $250) shipped to the lower 48 for a USPS money order only. This is also on craigslist.