Wireless security beams - placement

qwerty123

Member
Joined
Apr 5, 2011
Messages
17
Hi All,

I'm in the process of adding outdoor security PIRs to our yard.

I was basically deadset on these Takex ones with 180 degree cover MS12FE until I found out they are not "masking proof". My idea was to put them against the boundary walls - facing towards the house ( there's quite a lot of corners...)

  1. Is it better to have beams like this against the wall of the house opposed to boundary walls?
  2. If they are against the house, do I even have to worry about anti-masking technology?
  3. Is it true that it's quite easy to crawl undetected ?
  4. Any other options I should rather consider?

Thanks! ;)
 

BetaEagle

Active Member
Joined
Jan 24, 2018
Messages
73
I would highly recommend getting a security specialist to have a look at your terrain & structural elevation and then make recommendations. It is very difficult to give advice without having a mental 'map' of your environment. The placement of PIRs and other motion sensor technology can be very important , again, depending on your environment.

On the topic of PIR masking, in general it is better to buy so called anti-masking PIR modules. However anti-masking PIR technology does not guarantee anything.

Not that useful of an answer I know, but I still recommend it
 
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HavocXphere

Honorary Master
Joined
Oct 19, 2007
Messages
31,495
No you can't crawl under. There is no "under". You can crawl under those outdoor laser beams though - if you know where they are.

Masking - I wouldn't worry too much. It's quite difficult from the bit of experimentation that I've done. (Need to move very slowly and/or have something sizable to shield you, esp with the older non-animal safe ones). SA crims seem to prefer a more direct & less sophisticated approach. :erm:

I'd suggest going with a combination or PIRs and laser beams depending on the shape of the yard. Bit of low energy lighting is also always a good plan, but make sure it doesn't bother the neighbours.
 
Last edited:

bromster

Expert Member
Joined
Nov 2, 2012
Messages
4,376
Hi All,

I'm in the process of adding outdoor security PIRs to our yard.

I was basically deadset on these Takex ones with 180 degree cover MS12FE until I found out they are not "masking proof". My idea was to put them against the boundary walls - facing towards the house ( there's quite a lot of corners...)

  1. Is it better to have beams like this against the wall of the house opposed to boundary walls?
  2. If they are against the house, do I even have to worry about anti-masking technology?
  3. Is it true that it's quite easy to crawl undetected ?
  4. Any other options I should rather consider?

Thanks! ;)
1) yes. The idea is that they can't get to any Windows without triggering it
2) no. I have 3 takex 180s and they are difficult to trick.
3) one beam shoots horizontally across and the other shoots towards the ground. If you block both simultaneously, it goes off. So if someone wants to get into a window, it would be very difficult to achieve this. However, a small dog only trips the bottom beam so it won't activate.
4) no. They're pretty good. Get the wired ones so that battery replacement is not an issue.
 

bromster

Expert Member
Joined
Nov 2, 2012
Messages
4,376
If you want to put them on a boundary wall, rather buy the other type which is more like a conventional PIR. This will pick up anything within the target area, but might be subject to more false alarms. They will also charge you more labour for the additional distance of wiring.
 

supersunbird

Honorary Master
Joined
Oct 1, 2005
Messages
48,704
Well, it's best to have 2 systems if possible. Say the beams and some dogs to bark as well. And obviously a hard to get over perimeter (aka, more than just a wall, electric fence is good, acts as a perimeter alarm/siren and it doesn't have to be switched off like yard beams if you are in yard, so is always active)...
 
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