Brian, can you elaborate on what models/combination of FLIR/VideoIQ products you believe matches Sightlogix? It would help to be specific so we can better understand if it's 'apples to apples', etc.
I have some charts here which show what I would consider "reliable" ranges in most conditions. A few things to note:
1) I try to maintain recommendations so that the analytics have enough pixels on target to differentiate threat objects from non-threat objects. If you were simply looking for "intelligent motion", eg: anything moving in a predictable direction, you could extend the ranges, and the false alarms.
2) I've done personal hands-on testing with the Sightlogix camera and FLIR/VideoIQ combo referenced in the video I posted. I've been involed in various shootouts and other testing and evaluations carried out by others and seen similar results. So, I won't claim that data as my own, but from everything I've seen, it's roughly linear across the various models.
3) If you're comparing based on pricing or dollars per liner foot, keep in mind that our products include storage and a fully functional VMS (I know that you don't always believe this, but MOST of our customers use our free VMS), we also have an integrated audio talk-down channel on each device, which is VERY heavily utilized. So, for comparison sake, look at what it takes on both setups to get a "usable" system, and not just a video output.
4) Also, for general equipment pricing, I've still found that our HD camera + a good IR Illuminator is still the cheapest overall on a per-linear-foot-of-perimeter basis, however you will use more camers (2x-3x), so the hardware savings may be minimized or eliminated due to needing more poles, and just more general installation hours. So, in the end, I think that good thermal solutions can end up being about the same price overall as a good megapixel solution. The main differentitor, IMO, is how likely daytime incursions are. If you expect a lot of daylight activity, it might make more sense to use the optical cameras, because you'll get more intruder detail (clothing colors, maybe some rough facial details depending on distance, etc.) during the day. Night time, it's the same either way beyond about 200' from the camera, you're going to be getting minimized intruder detail on optical or thermal at a distance.