ultrasonic testing

The time looks like has arrived that I need to buy one of these... To check my AGEs... ancona and DCFusor, you two guys (among others, also, PMBug, this has been at least sort of addressed before) know this kind of stuff than I do. Here is an Ultrasound Thickness Gauge for sale at Amazon...

My guess is that you've probably already read from the SilverDoctors or from ZH about this case, if not, here are the articles: http://silverdoctors.blogspot.co.nz/2012/03/tungsten-filled-1-kilo-gold-bar.html http://www.zerohedge.com/news/tungsten-filled-1-kilo-gold-bar-found-uk My question...