Entry/ Exit zones - I need to use PIR - See updated post

[redbrickman]

As a newbie installing my own alarm I have asked my builder to run in wiring for the system. He told me that with a lot of modern doors being metal framed most installers now use PIR's in place of contacts on front and rear doors?

Is that true?

I don't have problem using PIR's for that purpose as long as they are programmable as entry exit devices.

 

[Denford1]

I always put contacts on front and back doors , that way the alarm will not set with a door open.There are contacts for all kinds of doors , plus you can use the CHIME function with a contact but not with a pir.

 

[caretech]

Would always recommend at least a contact on the Front (entry) door. But as above is best so you don't leave an external door open, although you might still forget to lock it.

 

[redbrickman]

I've had to go for PIR's for the entry exit zones in my new house.

Both the hall and the kitchen will be the entry/exit points. I am wondering if I should use dual (IR + Microwave) detectors in these areas as both will have direct sunlight and heating (radiator in hall and cooking appliances in kitchen).

Any advice appreciated.

Al

 

[steveo44]

I've had to go for PIR's for the entry exit zones in my new house.

Both the hall and the kitchen will be the entry/exit points. I am wondering if I should use dual (IR + Microwave) detectors in these areas as both will have direct sunlight and heating (radiator in hall and cooking appliances in kitchen).

Any advice appreciated.

Al

I would use a quad pir much more cost effective.

http://www.securitywarehouse.co.uk/...age=product_info&cPath=36_37&products_id=1572