Founded in 1994, Psiber Data Systems Inc. began with a simple philosophy - to build professional, high performance test and measurement equipment. Next generation products from Psiber enable customers to accelerate the deployment, improve performance, and simplify maintenance of communication systems. Headquarters are in San Diego, California, USA were R&D, manufacturing, and product services are done. We are proud that all of our handheld network testers are designed and assembled in the USA.