Overcoming motion detectors?

[Hawkeye]

In paininvmuthafuckinass's guide, he said that crawling underneath a motion detector and wrapping aluminium around it will be enough. I just need confirmation that someone has actually experimented with a detector and found that this worked. I've found that crawling really low to the ground, is an easy way to go undetected. But wrapping aluminium foil around them just seems to good to be true. Considering most middle class homes only have detectors in the hallways and living rooms, possessions in the bedrooms could be carried out through the windows.

If you've done this sort of thing, don't tell me about it, i just want to know whether you give any thought to the alarms. I'm not suggesting that I or anybody else should do anything illegal in writing this. Also, is there any way to tell whether windows are alarmed, i.e. looking for insulated wires, etc?

[master lurtz]

I've got some motion senesors in my house and yes, wrapping them in tin/aluminium foil does work. You will also find that quite a few sensors are above doorways making for easy acess.

.....by the way, shouldn't this thread be in lockpicking or electronics??

....... also if you have sensors that you can practice sneaking up on why diddnt you just test the foil thing yourself?
(plus you contradicted yourself above "I just need confirmation that someone has actually experimented"..... "If you've done this sort of thing, don't tell me about it" to confirm would be telling you that we have done this sort of stuff?)

[The Anarchist]

you could use one of those devices that jams TV remotes if the sensor is infrared.

[paininvmuthafuckinass]

Trust me I'm a professional.

[Hawkeye]

Originally Posted by master lurtz

....... also if you have sensors that you can practice sneaking up on why diddnt you just test the foil thing yourself?
(plus you contradicted yourself above "I just need confirmation that someone has actually experimented"..... "If you've done this sort of thing, don't tell me about it" to confirm would be telling you that we have done this sort of stuff?)

Actually, I had sensors at my old house, which I tried sneaking up on, but I didn't know about using foil back then. And no, I didn't contradict myself. There's a difference between saying you experimented with a motion detector which could be your own, and saying you burgled a house. You got me on one thing, though, this should probably be posted in a different section.

[Beyond]

Originally Posted by Hawkeye

In paininvmuthafuckinass's guide, he said that crawling underneath a motion detector and wrapping aluminium around it will be enough. I just need confirmation that someone has actually experimented with a detector and found that this worked.

Well for what it's worth, I install and service access control systems so I may be able to help you out.

I've found that crawling really low to the ground, is an easy way to go undetected.

And it is, you're simply avoiding the detectors line of sight. What it can't see, it won't report on.

aluminium foil around them just seems to good to be true. Considering most middle class homes only have detectors in the hallways and living rooms, possessions in the bedrooms could be carried out through the windows.

It all really depends on the type of motion sensor, really.

Microwave and ultrasonic sensors use signal pulses to detect a change in motion. Infrared sensors scan for a change in temperature, like a human body would present.

Obviously, you're going to set off the first two by placing foil over the sensor. It's instantly going to know it's surroundings have changed.

Infrared is a different story. Theoretically you could alter the foil momentarily to not upset the sensor, but theres no gaurantee it won't produce alarms in the future. Metal is a great conductor of heat.

The best option is just to stay out of its line of sight.

[Hawkeye]

So for infrared sensors, you would need only need to cover it with material that doesn't conduct heat? It should be easy enough to sneak up one, or approach it by entering through a window directly underneath it. If the material will set off the alarm later on, if its possible, you cound just turn the sensor to face a different direction.

As for ultrasonic/microwave sensors, I read somewhere that you can cut out the surroundings of a cardboard clock, attach some material (perhaps soft cardboard) to the hour hand and hold it under the sensor. You have to wait for quarter of an hour for the hand to tick all the way past the sensor, then you tape the material to the sensor. The motion of the clock ticking is too minimal for the sensor to notice. Obviously, its not ideal to be standing there for quarter of an hour waiting for the owners to come home (and repeating it for every sensor), so perhaps this is best for commercial b&e at night.

Any better ideas forr overcoming home microwave sensors? I have to admit, there are plenty of people who don't bother using their alarms unless they go on holiday. But still, there's no telling who they are.

[Beyond]

Originally Posted by Hawkeye

So for infrared sensors, you would need only need to cover it with material that doesn't conduct heat? It should be easy enough to sneak up one, or approach it by entering through a window directly underneath it. If the material will set off the alarm later on, if its possible, you cound just turn the sensor to face a different direction.

No, you'd need a material that wouldn't register temperatures much different from the sensor's expected levels, i.e. room temperatures on normal objects.

[Dark_Knight]

ive tried crawling under a motion sensor and it definitely didnt work.
i tried this breaking into a school. it was a rich-kid school so perhaps it only works on the cheap motion sensors?

[Beyond]

Originally Posted by Dark_Knight

ive tried crawling under a motion sensor and it definitely didnt work.
i tried this breaking into a school. it was a rich-kid school so perhaps it only works on the cheap motion sensors?

No.

Whoever installed it did a good job setting the line of sight. Good for them.