Pyroelectric sensors

[Adam Y.]

Does anyone know a good source for them?? I know acroname sells them but thats seems to be the only place that does.

[Jack]

what are they?

[SlamminSammy]

"Pyroelectric Infrared Detectors (PIR) convert the changes in incoming infrared light to electric signals. Pyroelectric materials are characterized by having spontaneous electric polarization, which is altered by temperature changes as infrared light illuminates the elements."


Try http://www.glolab.com/pirparts/pirparts.html , they should be
A LOT cheaper than AcroName.

[Adam Y.]

yeah I know thanks:) I found that website shortly after posting this.