Unlocking Motion-Sensor Secured Doors With Air Duster - Buxrs.com
Published: 4 years ago By: Samy Kamkar
By: Samy KamkarPublished: 4 years ago
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Unlocking Motion-Sensor Secured Doors With Air Duster (Canned Air)
by Samy Kamkar (read more...)
After testing various methods purportedly used to defeat motion sensors that are used to unlock doors, I found none of the methods documented on the Internet or that I heard about actually work. After performing my own research, I discovered a new technique that actually does work, and is simple and inexpensive -- using air duster (canned air) to set off the PIR (passive infrared) motion sensor from the outside.
The straw of these cans easily slips through most doors and allows you to aim the canister, while the output (technically not air, but typically a chemical such as difluoroethane) alters the temperature or amount of longwave infrared light that the sensor can detect, thus causing the sensor to believe there is motion, and unlocking the door from the outside.