How to Avoid Fake Coins - Testing Coins for Metal Composition

[@anthonygasparini1734]

I use the same meter to test side wall thicknesses on fuel oil storage tanks and water storage tanks, never gave your application a thought, thanks for this eye opening video..well done!

[@VerifyVeracity]

I have one of thees, I think it is a good tool to help test what you have. Size, pacific gravity, ping test, weight, Diamagnetic, V. Paramagnetic, V. Ferromagnetic, ultrasonic testing, looks, resistivity & etc.

[@jeffw1267]

I'm looking at the list of metals at 2:38. What the hell is 'glod'? Though I make fun of the unit's manual, I'm buying a tester right now because the price has dropped to $70. I wonder if I can set it for exotic metals like tungsten or titanium or magnesium because I have samples for all of those. I even have some rhenium slugs and I can't wait to test them.

[@Rob_Adventures]

jeffw1267 you can set it to any speed number you want

[@jccgold]

I think your device is called the "stone Digital Ultrasonic Thickness Meter Tester Gauge Metal Tester 1.2-220mm GM100"

[@TheEtbetween]

thanks excellent review

[@beameup64]

Checking for "specific gravity" seems to be rarely mentioned.

[@chrischoir3594]

does this work to detect with tungsten inserts/cores?

[@neoridivine8373]

How can we bet you sir

[@asht3637]

Rob where did you get your ultrasonic devise from?

[@Rob_Adventures]

Got mine second hand off Kijiji.

[@dougiequick1]

Thickness of course can be duplicated by alloying metals to get the identical weight per size. I would think resonance of materials would be harder to nail. The "ring" to it ....need decices that check resonance/thickness (dimension)/resistance/and OFCOURSE weight. I would think it virtually impossible to nail all four on one counterfeit coin or bar

[@edwaggonersr.7446]

There is a new invention. Tripod.

[@Rob_Adventures]

There is no manufacturer's name anywhere or model number. It just says made in China. I bought mine second hand. Sorry.

[@Rob_Adventures]

There is no manufacturer'

[@DedoTi]

Gold 3240, Tin 3230... so anyone can scam you with tin gold plated coin.... you will get same result

[@Rob_Adventures]

Wrong

[@DedoTi]

@@Rob_Adventures but you will get SAME thickness. But in addition if you make magnet test then you will catch fake gold

[@Rob_Adventures]

Yes best to both tests

[@mohamedyassir1232]

​@@DedoTi different density so can't have same dimension with same weight.

[@anguinusvir6698]

This proved nothing. A silver plated coin with correct thickness would read the same as solid silver coin. This is stupid.

[@Rob_Adventures]

Anguinus Vir the machine shoots a sound wave through the coin from one side to the other and back. if any material other than the one being tested for is encountered the sound wave will have a different travel time and an erroneous thickness will display on the machine.

[@anguinusvir6698]

robmajorfitness - Prove it!

[@dragosxtc1901]

Anguinus Vir I bought this shit off amazon and barely makes the difference between metals

[@atari7001]

He's not kidding. Each element in the periodic table has a different sound wave propagation speed. This is a property of materials. wiki for gold lists the speed of sound in the material: en.wikipedia.org/wiki/Gold

[@tigerlilly3727]

@@anguinusvir6698 you know how silly you look dude? "prove it!" XD smh. science bruh...