http://www.challenger.co.uk/productD...rderCode=SL106

Just buy one as it has been done before, and probably better.

If you use a standard PIR floodlight, it won't alarm in daylight.

 

Hi Diver,
If the 'night/day' setting pot on the PIR is turned right down, the floodlight will come on and the buzzer will sound during daylight hours.

I know that its not energy efficient, but he's only talking about 150W

Again we dont know the actual application.?

I have found that the detection range of the built in 'ding dong' tone on some PIR's is limited. That is, if the indoor plug adaptor that ding dongs is any distance/length from the PIR/wiring it dosnt always sound.???

__________________
Eric
"Good enough is Perfect"

PIC tutorials:
Gramo's: www.digital-diy.net/
Bill's: www.blueroomelectronics.com/