If given a choice would you go for an iL06_1 (Iris V3) or a 3320L (Iris V2)?
The 3320 is on the compatibility list, but the iL06 is not... although I'm not sure if that matters.
I've also seen the Comcast XFINITY Security Visonic XHS2-UE Door Window Sensor advertised - any thoughts on those?
I have all 3 versions (although no longer use any V1's and would only recommend as a if you are unable to get the other 2 versions) and all 3 are compatible. I prefer the V2's (3320:) as I don't think I have ever changed it's battery (only one of them) in over 2 years, if so only once, it's a bit smaller better appearance. But the V3's is what I have most of at 20+ and they are completely fine, just a tad bigger.
Thanks!! I appreciate the feedback!