Welcome to Criterion Instruments

Criterion Instruments has been a market leader for electrical and electronic test equipment since 1938. We are recognized in the electrical industry and utility sector as a qualified supplier, satisfying the ever-varying requirements brought on by more stringent test specifications imposed upon current electrical products. Criterion Instruments allow you to improve quality, energy management, and user safety with the confidence of thorough, reliable testing. Most importantly, you’ll be able to deliver the results your operation needs and prevent major problems before they happen.




Discover unparalleled precision and reliability in dielectric strength testing with Criterion Instruments. Our Dielectric Strength Testers stand as a beacon of quality in the electrical industry and utility sector. Recognized as a qualified manufacturer, we navigate the ever-evolving landscape of stringent test specifications for contemporary electrical products.


Our high-voltage testers operate up to 40kV AC and 50kV DC to provide an impressive range of capabilities. Regardless of the high-voltage equipment that needs to be tested, we have the products that can get the job done. Dependable results are our promise to our customers because there is no room for error when working with high-voltage cables, transformers, and equipment.


Every Criterion Instruments product undergoes thorough testing for accuracy, durability, and includes intuitive design right through the product development cycle. You deserve gear that’s easy to use, ready for worksite application, and able to perform under pressure.


If you have any questions about our products or require more information about their capabilities, please reach out to our team.