best alarm

[megalite]

so what is the best alarm? i want it to beep once when somebody looks at the bike, then go off if somebody is very close to it.
any recommendations of a good place to look for an alarm?

[madmav]

Don't do it megalite!
more bloody trouble than they are worth !!
Get one of those chains BDG uses
Awsome
mav

[megalite]

really, how come? whats BDG? I will also be getting an Almax series 3 chain with squire SS65CS padlock, what do you think about that?
it costs half the price of the alarm system - a lot! 150 quid