King Tester is expanding its product line to include the full range of Ernst hardness testers. Customers will benefit by having a single source for a range of Rockwell, Brinell, micro, and in-line hardness testers throughout North America. King Tester is working with Ernst to provide the innovative and highly popular hardness testers marketed under tradenames like Versitron and AutoBrinell. King Tester, which will offer warranty and support throughout North America, was acquired by Salt Creek Capital in October 2015. The King of Prussia, Pa.-based company manufactures and distributes a broad line of metal hardness testing equipment, microscopes and scanning devices used in a variety of industries.