Apropos of nothing Eaton / Scanny wireless contacts also do pulse count for RSD, never noticed the feature on any other TBH

I would assume d knock work as goes of twice within x or says open for x

21 hours ago, james.wilson said:

I assume its like a vibration sensor but I'd expect noise on the cables to cause issues at 1ms

Thats why, I think, you can set more the one pulse count.

Of course on there is and there could be noise due to for example some wind moving the shutter or not yet perfer stopped as soon as the shutter goes down and you have to arm the alarm system.

Anyway here you are the manual: