anybody know how to avoid being detected by passive IR motion sensors?

Wear a tin foil suit.

block the ditector

most detectors wont go off if it sees big dog.

put on a put on sweat cloths, drape a heavy cloth over your face and spray your self down with water. when the water starts to dry it will cool down and you might make it past

Any insulating material (styrofoam sheet, quilt, etc) held between you and the sensor.
Allow shield to equalise to room temp first.
Ensure no part of body is visible to sensor.
This works fine, though its useful to run a
'non-critical' test first, using typical IR
sensors, at the sort of range you think best. The closer you are, the more slowly
you should move. Minimise 'delta' of heat
profile variation across the sensors zones.
This does *not* work with combined microwave
dopler & IR sensors.

you are all idiots!!! IR is NOT heat detection. it stands for infared which is light at a frequency above that which is visible by the human eye. never the less, if you ever want to disable nearly any type of camera just keep a laser shined directly on the lense.

chao for now,
MM

on contraire, the upper end of the IR spectrum is essentially heat detection (no i dont mean this in the most literal sense). the lower end is what is used in conjuction with night vision to increase visibility through the unit. IR motion sensors dont operate on the same principles as a camera, so shining a laser in2 the lens wouldnt work. u could on the other hand obtain an infared laser and use that, but if nething, that would probably just set the device off, if it did anything at all (the sensor is using the upper end and all of the IR lasers i know of use the lower end).

[This message has been edited by O'CYRUS (edited 12-17-2002).]