I Don't exactly know what argument you are trying to make but I hope this quote from the PSA website clarifys things for you. I have highlighted the relevant bits.
The legislation is very clear in that it covers persons who provide a security service for remuneration. It is an offence under the Act for a security company or a person working in the industry to provide, or present themselves to provide, a security service without a licence, once the 'critical date' for a sector has passsed (the critical date is the date from which licensing becomes mandatory for any given sector(s)). Similarly, it is an offence to employ an unlicensed security operator.
[broken link removed] is the Act if you wish to read it yourself.
Colm,
Thanks for clarifying.
As I said above, i'm not trying to catch anyone out. I read through the Act last night and couldn't find anything about house alarms in it or anything about breaking the law by getting someone who doesn't have a license to install one.
I note that it does group under ‘‘security service’’ a ‘‘supplier or installer of security equipment’’, but stops there. I was under the impression the Act was brought about mainly to license bouncers and private detectives etc.
The original question posed by the OP is around wireless alarms and if they are any use.
I find it difficult to understand how someone could be accused of breaking the law by attempting to protect their house with a 'security system', whoever installs it.
I'm also trying to find out what law they are breaking and how this law defines a 'security system'.
For example, i'd regard a simple PIR yard light as an effective enough security system. If an old lady buys one and asks her son to install it, is she breaking the law?
If she then asks him to install a wireless alarm system similar to the one mentioned by the OP, is she also breaking the law? If so, what law? And should she be warned about this before she buys it?
Or is it ok to install any alarm system you like as long as you don't pay anyone to do it?