Pleassssssse advise me quickly

[Dhuwayhi]

Hi brothers

I found this detector and I liked it since I watched the video but I couldn't find phone number . I sent him a mail but he didn't response , I think beacuse he is a turkish and I sent a mail in english . http://metaldedektor.org/

please watch the video and tell me if it is right or false and can you help me by giving me a phone number .
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http://www.rangertell.com/
this is another detector I found and I saw 3 or 4 videos about it bit I'm not sure if it is good or bad . please advise me it it is good or no.
this a video link and you'll find other tubes http://www.youtube.com/watch?v=RoKbjsC5oy8