Breakthrough Technology

Deliver the speed and flexibility required to succeed in modern electronics manufacturing. Because 10 at a time is better than 1 at a time.

Full Service Solutions

CheckSum understands that board test requires more than a tester. Customers trust CheckSum to provide their entire board test solution: test systems, fixtures, programs, and global support. Entrust your next project to CheckSum.

Global Support

Electronics manufacturers in over 40 countries rely on our team of support engineers and distribution partners. Your success is our business.

The Latest

CheckSum at IPC APEX 2020

The CheckSum crew will be heading to IPC APEX 2020, hosted at the San Diego Convention Center February 4-6. We develop technologies to Parallel Test panels of PCBA’s. An increase in panel density is driving substantial efficiency and throughput gains on the SMT lines; however, typical testing processes are unable to match this increased throughput. […]

Happy Holidays

CheckSum is observing December 25th. Please be aware we will not be in the office and may have limited availability with our team travelling over the Holidays. Thank you for your patience and we look forward to working with you in the New Year.

Meet us at Productronica!

Our new Director of Sales, James Holava and our Field Product Manager, Harry Jin, will be heading to Prodcutronica November 12-15th and are taking meetings Thursday and Friday. If you would like to meet with our team during the conference please reach out via email to and/or

Did You Know?

When talking to customers and potential customers, we find it interesting the many of CheckSum’s capabilities aren’t known by some industry professionals. With over 4000 test systems installed around the globe, CheckSum serves a wide variety of customers with a significant diversity of testing needs.  Each CheckSum test system is designed to meet a specific […]

in-line automated electronics tester

A Tester in Every Line

Why is it the entire electronics assembly line is automated until test?  There are exceptions and it is becoming more automated, but why aren’t in-line testers the norm? The reason is speed.  Test times for PCBAs are typically much longer than any other single manufacturing step.  That time is called “Takt Time”, the time between […]

Ask an Engineer

Have questions about how to test a circuit? Questions about options and upgrades, design for testability concerns, or need to diagnose a system issue ask one of our engineers for assistance. CheckSum engineers have decades of experience.