CheckSum has been delivering reliable, cost-effective, and easy-to-use test solutions to OEMs and contract manufacturers since 1987. With an installed base of almost 4,000 test systems, CheckSum helps customers ranging from automotive electronics manufacturers to global EMS providers increase productivity while reducing total test and manufacturing costs. CheckSum is a leading supplier of in-circuit test and on-board gang programming systems and services to the worldwide electronics manufacturing industry. Products and services include systems, fixtures, and programs that detect manufacturing process faults on complex SMT printed circuit assemblies and that provide value-added operations such as device In-System Programming (ISP).