luke.the.darkside.is.fun said:

CP3S said:

luke.the.darkside.is.fun said:

can you hit me up with a link that shows one thats not to high?

If you are going for cheap, this one looks slightly more professional than the $12 dollar one, and it actually has a meter rather than just a green, yellow, or red light like the $12 one. It also makes noise when it gets a reading, which could sound quite impressive to spectators.

http://www.amazon.com/Gen-El-Gauss-Master/dp/B0004IR6J6/ref=sr_1_3?ie=UTF8&qid=1296771235&sr=8-3

will power lines it set off?

It will get a reading from them. But any of the cheaper ones will, if you want one that doesn't it looks like you are looking in the $150 + range.