Presidium Diamondmate A- Diamond Tester

The PRESIDIUM DIAMONDMATE-A utilizes proven thermal conductivity testing method to instantly verify the authenticity of diamonds. The test results are indicated by visual light and audible beeps. FEATURES DiamondMate-A operates on alkaline (AAA) batteries or direct AC current.(optional Adaptor) No waiting time between tests.Pocket size.Low batteries indicator.Metal detector - intermittent beep.Measured diamond - continuous beep.Low battery consumption. Standard Accessories. Optional Accessories adaptor 120v. 1 year factory warranty Carrying case.