Listing my like-new Sigma Metalytics Pro Mini Precious metals/metals verifier. I have only used this several times and have never charged it (still has a lot of juice from the first time I powered it on). This is the Pro Mini version (Model 3001) which can test density/gravity as well as the usual resistance test. In addition, this Pro Mini also comes with 3 additional wands (Small, Large & Bullion) that you can plug into the Pro Mini to test very small coins/bars and medium to large coins/bars with. To use it, you download the Sigma app for Apple/Android or the Windows/MAC software for your PC and then sync the Pro Mini to your phone/tablet or PC either by wifi connection or USB. This tester can also test for different types of old coin silver and coin gold as well as other non-precious metals, the settings are all on the app. https://imgur.com/a/eG9bXVS In addition to coin collection, I have also been stacking silver bullion so it has served me very well in the short time that I have used it. This is the complete fool proof method for testing bullion coins and bars, never have to second guess the results. It can even test coins/bars through plastic! Only reason I'm selling this is because I need extra funds for Christmas gifts/Christmas purchases and I figure I don't use this often enough since I don't deal with bullion every single day. Nonetheless it is a luxury to have something like this tester. Originally purchased from AG Bullion LLC (receipt also included) as a bundle package with the 3 additional wands, Asking SOLD with free shipping to CONUS. Priced for a quick sale! Might also list on eBay! Here are photos of the tester, wands and case/accessories. https://imgur.com/a/gPo5PPN