CPO Grading Scale
The Grade definitions, cosmetic guidelines, and functional testing for CPO Grading are different from DLS and TPS-180 Grading.
To learn more, see TPS-180 GRADING SCALE and DLS GRADING SCALE
This product undergoes a rigorous inspection process that includes a 64-point functional test. These Fully Functional devices include a six-month functional warranty.
See FUNCTIONAL TESTING to learn what tests we run to determine our grades.