On Friday, 29 November 2019 16:09:29 UTC, Rod Speed wrote:
"T i m" wrote in message
news
On Fri, 29 Nov 2019 08:51:16 +0000, Martin Brown
wrote:

snip

A wildlife PIR triggered camera might be more useful for your
application - that way you have some video of the scrotes.

I was going to investigate a(n invisible?) break-beam sort
of device that could be set higher than most ground
dwelling creatures and below the typical flight line of a bird.

Wouldn't work here, lots of birds zoom thru my trees at well
below human head height. Amazing how well the manage
to avoid crashing into anything at the speed the zoom thru.

As I found with my cat came many critters can cross such beams I had quite a few months, perhaps attracted by the dull red glow of the IR LEDs.

https://www.youtube.com/watch?v=O32lQ_FGwdQ


There was even a programme on TV about some strange 'invisible' creatures
that some explorer found, strange long creatures that were filmed at night in some far flung country, I had them in walthamstow too. They claimed they were up to 9ft long, but I think that was because they were close to the lens and just looked larger. I even had a spider make a web over the lens.

Leaves blowing from trees could also set such a thing off.
Bats too, I'm betting there;s a posibility that T i m has plenty of bats in his belfry ;-)






That connected to a GSM SMS dialler so that I can
1) remotely view the CCTV then 2) potentially call the Police.

Yeah, that's what I'd have.

Nothing the Police like to know better
than the scrotes are still on the scene. ;-)

Yep.