ya they got em there these little shits like a smoke detector but detects the fumes of paint and they make this high pitched tune they have one at the chill spot under a highway bridge and then after i found this out and was leavin the place right accross the street was a detect but noone in the car so im just wondering if they do detect paint fumes if they can actually like alert police.....either way im not takin the chance so

 

you *****s are over stressing this, heres an idea duct tape over the sensor.... too far out of reach? bring a roller with an extention and dab the sensor with roller paint, no fumes..and it will most likelly never work again

 

but it will flip the fuck out when you put the paint on the sensor, harhar

detecting graffiti by sound is a better system.
they have gunshot microphones in big cities that can pinpoint where a gunshot came from by comparing the time it takes the sound to reach different microphones
they could easily do the same with spray paint can rattle

 

yeah true that, but by the time it flipps the fuck out and alerts everyone you could be in and out in a jiffy