The Schaffner Group is an international leader in the development, manufacture, and sales of electronic test equipment. Schaffner is a respected manufacturer of test equipment that ensures the reliable and smooth operation of multiple electronic systems. Schaffner Group has developed a variety of specialized instruments for use by engineering professionals, including EMC/EMI components, energy-efficient drive systems, power supplies for telecommunications and medical technology, pulse signal generators, surge signal generators, and transient signal generators. Purchasing these items used and refurbished is a smart way to increase your return on investment. ValueTronics is your one-stop-shop for refurbished test equipment from top brands.