Now before you start thinking bug or dust remember that alarms would be going off all over the country if bugs or dust could set off security camera motion sensors. I'm sure some cheaper ones dp but this security company claims
that bugs and dust will not activate the recording.

http://www.cnn.com/video/#/video/living/20...es.on.tape.kshb

I would look further into all forms of logical explination first (i.e a glich in the programming ,etc,etc. ) . Then I would look into the history of the building and property and see if that leads anywhere . I have seen this video before , and while I find it interesting , I am still doubtful of paranormal origins .

My first thought when I saw video was a particle in the air until it said the security
company said neither dust or bugs would set it off. And it makes sense that if those things did set it off they would have tons of calls nightly. I know bugs & particles do not set off the motion detectors where I work but anything dangling such as streamer, cord or lightweight sign moving due to the air current will set it off. If they do figure it out I hope they report what it was.

I have been doing a lot of reading the last few days about motion sensors, how they work and what sets them off, not because of this video but because we had an issue with a motion sensor at our last investigation. In fact that is how I ran across this video.

From Softpedia
There are two types of motion sensors currently commercially available, the active sensors and passive sensors. A motion sensor is classified as being active only when it emits some kind of energy into the surrounding medium to make an accurate reading, whether it is infrared light, microwave radiation or sound waves. Passive motion sensors do not emit energy, but can identify possible burglars by reading relative changes in the energy in the surrounding medium.

Passive motion sensing detectors work by measuring the incoming infrared energy. They are widely known as PIR (passive infrared) sensors, or pyroelectric detectors. Heat can be transmitted by contact, convection or radiation. Infrared light is responsible for transmitting heat through radiation, and because the human body is a heat source it also emits infrared radiation. The outside skin temperature of a human body is usually about 34 degrees Celsius, meaning it is radiating energy in the infrared spectrum between 9 to 10 micrometers.

The PIR sensors have in fact a much wider range, between 8 to 12 micrometers. The detector itself is a photodetector able to convert light in these specific wavelengths into a small electrical current that is then amplified and processed through a small computer. The alarm will only trigger when the motion detector observes rapid variations in infrared energy distribution, such as those associated with the normal movement of a human.

Any smaller variations in energy reading are being filtered out, so that the sensor is not being triggered accidentally by natural events such as the slow heat variations in the supervised area. Infrared light emitted by the objects is focused with the help of a plastic lens, since glass is opaque to infrared light. This is why PIR detectors cannot be triggered by events taking place on the other side of a window.

How close does an object have to be to the sensor before it sets it off? Does this depend on the model type?

I am guessing it depends on the model. I know that when I tried dropping small
objects in front of mine from behind the unit and it didn't go off.

That video is very intersting. I have work with a lot of security systems and CCTV while working as a Loss Prevention officer and I never seen anything like that.

If there was a malfuction with the system, the camera will either go black or fuzzy. Now turning its self on, that maybe can be explaind by a power surged or programing. The system that I saw on tv looked like a very good one by how clear the video was. It looked to be hooked up to an inlex system. An Inlex system will record video on a hard drive and not tapes. You also can set up start and end times and camera patterns when recording.

I had to review video during day and night and I never seen any orbs on the cameras. Not even dust orbs or unexplained light. To have that light or mass, or whatever it was, in several different places, on several different cameras, is astonishing. If it was only seen on one camera we can say its a bug or somthing on the lens. But to have it recorded on several cameras for over a long time span is somthing too look at.

I think this is a good piece of evidance of paranormal. Now what is needed is a group to do an investation in that place to gather any more evidance to back up the video as being paranromal or to disput the video as some kind of error.