P.I.R. Operated Outside Lights.

Ys Passive infra red is actually the “wrong” technology for outside because it`s looking for changes in temperature in it`s field of view over a certain timeframe. you give the duration, the amount and the speed maxima and minima to try to cater for certain factors and it`s all a bit of a compromise. you end up with a unit that works reasonably well a lot of the time, but sometimes the extremes kick in and throw it about. If the result is a false trip or two every now and again it is quite tolerable. Connecting it to an intruder alarm system though would be an absolute nightmare. That`s why we connect them indoors to alarm systems where the limits are more controllable and outside is a bit of a fudge really

Ys Passive infra red is actually the “wrong” technology for outside because it`s looking for changes in temperature in it`s field of view over a certain timeframe. you give the duration, the amount and the speed maxima and minima to try to cater for certain factors and it`s all a bit of a compromise. you end up with a unit that works reasonably well a lot of the time, but sometimes the extremes kick in and throw it about. If the result is a false trip or two every now and again it is quite tolerable. Connecting it to an intruder alarm system though would be an absolute nightmare. That`s why we connect them indoors to alarm systems where the limits are more controllable and outside is a bit of a fudge really