Hello -

I'm currently adding a bit of security to my house by buying some cheap
wireless PIR sensors and receivers from
http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=101495 , interfacing a PC
to them, and switching on lights, sending email alerts, posting webcam
pictures to a website, etc. when activated. It's going well so far.

I'd be interested to know if anyone can see pitfalls in this approach, eg.
- PIR manufacturer going out of business and not being able to get
compatible receivers/transmitters
- burglars who carry radio jammers (does this happen outside of crime
novels?)
- What am I losing by not using sensors intended for alarm systems
- Are inconspicuous PIR sensors less of a deterent than a big bell-box?
- I'm thinking of installing one of these at a property that already has an
"Anglian" branded wireless alarm system - are they likely to clash?

Thanks