How Deep Can The Sigma Precious Metal Verifier Large Wand Adapter See Into

After digging and digging through every single online document on this device I have found that the main sensor can see gold over Tungsten at a depth of .4mm ( presumably for .999+ gold, as it states it reaches 1mm for 22k gold. )

Then it claims the large and small wands only read down to .25mm

Then it gives contradictory information regarding the diameter of the bullion wand.

From one manual it claims " The bullion wand will not work with standard coins. The item being measured must be at least 22 mm diameter and completely cover the sensor surface. "

From another it claims " bars and coins must be 24mm in diameter for measurement with the Bullion wand. " Both statements come the same documents straight from the manufacturers site, so I'll go with 24mm as it appears more often and in the graph:

So Main sensor 0.4mm, small and large wand .25mm, and Bullion wand claiming 1.5 gold of gold over tungsten detection although multiple sources have listed 2mm.

Regardless it appears ( unless somehow I am wrong about my math )

1 I cannot use the main sensor, 2 I can use the large sensor to detect a whopping .25 depth on both sides ( wow.. ) and the only adapter I care about, the bullion wand, won't even work because the bar trades width for thickness.

Ultrasonic testing can be confused with powdered tungsten from what I've read, specific gravity is too narrow, and this device would only read under .25mm out of 5mm.. leaving a whopping 4.5mm untested.

Sorry I didn't do my research well enough before I posted, but at least it's all here if anyone wants to reference this device in the future.

The only thing left would be if somehow 19 mm width over 33mm length would somehow work out to a 24mm diameter bullion wand, which makes absolutely no sense.. regardless of where I'd put the probe I'd imagine it would never cover it completely unless I reach the fourth dimension.

@moxking I am unsure as I do not own one as of right now, but was reading off their website. So the brand would be sigmametalytics, latest firmware, non pro version.

Thank you jbuck, appreciate the welcome, my apologies for the long winded first few posts, just trying to figure this all out.

I love the machine in theory, but whether it's practical or affordable is another thing entirely. If I was running my own shop or buying PMs every week I would probably grab the pro for 1500, but ideally would love to make the base model work.

Do not sweat it. Most of us took a while to settle in here.