Ok, alot of questions here for you:
Ok, do you offer a version without the enclosure? Something I can fit into the MS3/X enclosure? Do you sell it in kit form for cheaper? Also, is this any sort of open source based? Or completely proprietary? And how do you handle updates to the firmware and the PC software? Are the updates included in the price?
Also out of curiosity, does this product look for an amplitude difference in the signal at the specified frequency, above the already established noise floor within the window? Or does it actually look for the characteristic signature of knock through an FFT, where the ping drifts in frequency a bit from beginning to end of the event, and shows up in other harmonics. Or is that really just overanalyzing a rather simple thing that is easy to reliably detect through the amplitude change?