@rektifier to [email protected]English • edit-21 year agoHow Passive Infrared motion detectors workwww.youtube.comexternal-linkmessage-square0arrow-up112arrow-down10file-text
arrow-up112arrow-down1external-linkHow Passive Infrared motion detectors workwww.youtube.com@rektifier to [email protected]English • edit-21 year agomessage-square0file-text