In article ,
TheChief writes:
Andy Burns Wrote in message:
Michael Chare wrote:

I need to buy a couple of burglar alarm PIRs for use in a lounge and
another room. We don't have any animals, well not at the moment anyway.
Any recommendations as to what to buy?

I've installed Activ8 Dual-Tech ones (combined PIR and microwave doppler
sensors) spiders haven't managed to set them off so far.

+1 for dual tech passives if there's a chance of false alarms.

Mine are all dual-tech.
I've had long-life from Pyronix and Guardall dual-techs.
Focus on the other hand were so bad I sent them all back
(their anti-masking detectors kept false triggering and
cannot be disabled).

Of course, this doesn't necessarily indicate the quality
of similar products you might buy today.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]