The Sigma Metalytics Precious Metal Verifier Investor-Case is an all-in-one unit designed for investors looking to identify and verify the authenticity of precious metals. Made by Sigma Metalytics in the United States, this model SM3012 comes with a 2-year manufacturer warranty and free shipping. This innovative technology allows users to accurately determine the purity and authenticity of their precious metal investments, making it a valuable tool for both individuals and professionals in the industry.