Which is the best and cheap metal detector?

Best ***CHEAP*** lie detector?

• What is the best ***Cheap*** lie detector that gives the most accurate results? I would rather spend $60 and get accurate results than $20.00 and half accurate. So what would it be? Would it be something like that shocking lie detector for like $20.00? Or (see here: http://gizmodo.com/gadgets/gadgets/shocking-lie-detector-172103.php ) Or something like this for around $70? (see here: http://cgi.ebay.com/NEW-LIE-DETECTOR-TRUSTER-SPY-GADGET-MOD-TNF-100B_W0QQitemZ110230099174QQihZ001QQcategoryZ294QQssPageNameZWDVWQQrdZ1QQcmdZViewItem ) Are these two items totally different technology, or will they give pretty much the same feedback? I want this just for fun and games sort of thing.

• Answer:

  both of those are "toys" and wont work well at all...... you will need to spend more than $200 to get a true LD that will work