Thanks for the response.
I noticed it needs their PIR, not a deal breaker, but prefer standalone if possible. It just came up in a quick search, didn't delve to deeply into it. Presume there must be a newer version? Or have they dropped integrated PIR since?
I'm planning to ditch HIK entirely. Can give the three working ones to my parents, who also have the same cameras. But if I find a decent solution, which allows me to use real time alerts without being bombarded with false alerts, I suspect they will switch aswell.
Whats the TVT model?