Re: Newbie questions

[seafh@xxxxxxx]

Rich wrote:
> If you have this outlook why are you installing a system anyway? There must
> be a reason you are spending $500.00. Safety, Security, Early warning, Evan
> a door chime so you know when the wife left the dog out.
>
> Oh the insurance discounts. Maybe the smoke detector that went off at 3 AM
> and called the fire dept while you were sleeping. It's worth it to have it
> monitored because you have no clue.

Thanks for the response.  However, I am not sure I understand you.  I
am concerned about the effectiveness of the burglar alarms from what I
read, so I raised the questions.  May be most burglars don't cut phone
lines before they entered houses?  May be many systems have a built-in
battery that will power the siren and not easily taken on etc.
Actually, I am not planing to spend $500, more like $200-$300 for one
of those wireless system from online site.  I am not going to count on
window/door sensors, but rather on motion detector for protection while
nobody is home (the main situation for protection).
Actually, I have one more question regarding those motion detector:

(3) Those pet immune motion detectors: are these thermal based detector
such that they only detect living things with thermal radiation, such
that the motion of a non-living object won't trigger them (such as a
curtain blown by wind thru a window etc.)?

Thanks again.