In article ,
Bert Coules wrote:
Brian,

At a quick glance it appears to be a standard joist/pipe locator linked
to a smartphone app which offers a graphic visualisation of what's
detected.

Bert

Ah - right. So pretty graphics on something just as useless for the task
needed? ;-)

--
*I'm not your type. I'm not inflatable.

Dave Plowman London SW
To e-mail, change noise into sound.