explained :
Are the cheap end versions any good ?

http://www.tooled-up.com/Product.asp...ensor-0-77-110

Specifically I want to use them to detect studs behind plasterboard
(1930's house) so I can hang shelves, pics
etc.

Or should I invest in a couple of powerful magnets ?

Thx

What is wrong with the tried and tested method of tapping on the wall
with a finger tip and listing to the change in the sound it produces?

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk