Does anyone knows if it is possible to spoof the pmv using a fake or plated gold coin with tungsten core? I have an pmv and so far it appears to work with genuine coins.
PMV's can always be fooled by just the right type of forgery. XRF looks at the surface metal, density meters can be fooled by the right alloys etc... The more tests something passes the more likely it is to be genuine. You have to decide what tests you are prepared to perform before you are satisfied.
You also have to be a mug to buy a bar from an unknown. Providence is king. Most PMs have a history which can be helpful in your purchase.
With PM’s increasing in value this will prove to be more and more important. SS provides a platform that can reduce exposure to fakes. The collective knowledge is invaluable.
I just got one from America $1073 delivered in 3 days, Very easy to use and well worth it if it save me from one fake .5oz gold wish Id got it at a higher AUD but such is life. https://buysigmametalytics.com/products
https://www.rfsales.com.au/products...ess-gauges/ultrasonic-thickness-gauge-tm8812/ Can anyone comment on the usefulness of one of these? They go for about $300 aud so much more affordable than a PMV.
its a thickness gauge, it wont say what the metal is. Are you out Ringwood way Ill show you the sigma I wish I gt it sooner
But coupled with some calipers, you can compare the thickness you measure with that recorded by the device using the velocity of sound in gold or silver. Any discrepancy would suggest an alloy or fake. Similar concept to the PMV I don't get out to Ringwood much but will definitely get in touch next time I'm round.
When I found something that may do what I want Ring the company and ask them if it would work for your use.
Just curious, does anybody have the Pro version and would you go for the Pro instead or would the standard one do just fine?
