As a layman, I am surprised that house alarms which are hardly cutting edge given how long they have been on the market haven't developed beyond their current state. I can't be the only house owner who is after an accurate detection of an intruder without having to invest in commercial grade/exorbitantly priced systems...
Thanks again.
What do you expect for a tenner!
I’d fit a Pyronix TMD set up as tri-mode.