mistergrumpy
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| posted on 16/6/07 at 04:04 PM |
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Security Laser
Does anyone know where I can get one of them laser beams that are generally found on security gates or garages? Someone has been in my parents rear
garden and they're looking for some deterrent that could set the burglar alarm off. CCTV's a little expensive it seems and they'd
rather deter them than catch them.
Cheers
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tegwin
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| posted on 16/6/07 at 04:21 PM |
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I dont think they are lasers...or the cheap ones arnt...
I suspect they are IR beams....
Not sure where to get complete units, but RS sell the bits...
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StevieB
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| posted on 16/6/07 at 04:24 PM |
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When I was with the marines, we had a very sophisticated system that would deter most people - it involved some dental floss and a bunch of mess
tins.
Rid it up to cause a massive commotion should it be tripped.
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westf27
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| posted on 16/6/07 at 04:56 PM |
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a mate of mine rigged up a .22mm bullet device oh his gatepost to protect the car.Neither sensible or socially acceptable these days,but these
thieving gits need to get something.
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mistergrumpy
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| posted on 16/6/07 at 05:00 PM |
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I was with the Air Force as a weapons technician so I know what you're meaning with the bang stuff and I'm all for that but me mams not.
Frag grenade on a trip wire 
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David Jenkins
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| posted on 16/6/07 at 05:15 PM |
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If you go to a decent 'country sports' shop - sort of place that sells shotguns, fishing gear, etc - you might find 'alarm
mines', which are trip wires with 12-bore blanks attached.
Walk through the thread, blank goes off mightily just next to you - brown trouser job!
Also legal, as long as you don't put real 12-bore cartridges in them... 
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StevieB
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| posted on 16/6/07 at 05:26 PM |
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Forget the Frag, go for the old Shake 'n' Bake (White Phos) - sounds and lights!
[Edited on 16/6/07 by StevieB]
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DIY Si
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| posted on 16/6/07 at 05:38 PM |
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Paintball mines?
Explosive and amusing! 
Or as said, the "alarm mines" or whatever they're called these days. 12 gauage blanks going off at ear level will put more than one
or two scallies off. Oh, and stop them hearing for a while!
Or just get a bloomin' huge dog.
Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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mistergrumpy
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| posted on 16/6/07 at 06:16 PM |
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I think we're getting a bit carried away. I know me mam won't have anything that goes bang. She all but denies anything I did in the
forces. As for dogs, she has two tiny yorkies and these are what she's worried about getting battered in the house. Nowt really of any value
worth nicking in the house. I just need to add a bit of reassurance for her.
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David Jenkins
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| posted on 16/6/07 at 07:21 PM |
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OK - on a more basic level, how about some good old security lights... nice big bright 500W jobbies with a PIR trigger.
Nothing the villains like less than working in the glare of bright lights, in full sight of the neighbours.
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lsdweb
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| posted on 16/6/07 at 08:35 PM |
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Maplins do a basic IR beam kit - just needs something to link it into - e.g. alarm, light etc..
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StevieB
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| posted on 16/6/07 at 08:37 PM |
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quote:
Originally posted by David Jenkins
OK - on a more basic level, how about some good old security lights... nice big bright 500W jobbies with a PIR trigger.
Nothing the villains like less than working in the glare of bright lights, in full sight of the neighbours.
You're actually better off with a constant light than a PIR trigger - it's been proven to be more of a deterent (if annoying for the
neighbours!)
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mistergrumpy
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| posted on 17/6/07 at 01:17 AM |
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Yep big light going up, its just for during the daytime. Dad tried Maplins but couldn't find nowt. Gonna look on their site now. Suppose I
should've done that before letting him loose.
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britishtrident
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| posted on 17/6/07 at 06:49 AM |
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You need a wireless PIR that operates a remote alarm/chime/light switch not an IR break beam
B& Q have what you want either combined with a spot light or just a wireless PIR and remote chime on its own works day or night.
I have one set up with 3 detectors.
Alternatively look at some of the Micromark CCTV based systems B&Q systems.
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JamJah
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| posted on 17/6/07 at 03:48 PM |
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Surely an external PIR liked to the burglar alarm system isnt a good idea. Wouldnt birds and leaves set it off?
This is personal advise or personal opinion.
Constructive comments gratefully recieved, picking is left for noses.
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mistergrumpy
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| posted on 17/6/07 at 05:56 PM |
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Trident, any pictures or make/model of what you have. I did think I'd seen summat in B&Q but now can't find it, thought I'd
imagined it. JamJah I'd just put the beam before the entrance to the doorway to protect that and the windows and luckily the birds tend to stay
at the bottom of the garden, probably because of the dogs barking.
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britishtrident
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| posted on 18/6/07 at 07:14 AM |
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IQ brand in the flood lighting section various different models
http://www.diy.com/diy/jsp/bq/nav/nav.jsp?isSearch=true&fh_search=IQ+wirefree&selected=products&x=0&y=0
[Edited on 18/6/07 by britishtrident]
[I] What use our work, Bennet, if we cannot care for those we love? .
― From BBC TV/Amazon's Ripper Street.
[/I]
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mistergrumpy
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| posted on 18/6/07 at 09:09 AM |
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Cheers mate. I'm off there as soon as I can haul my arse off the couch. Ta.
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