Appalachian Electronics Instruments, Inc. was formed to produce industrial instrumentation, primarily a temperature controller. In the 1960s, AEI pioneered the development of end-break and defect detection for warp knitting machinery, and still leads the industry in these key applications. Today, AEI offers a diverse range of innovative, cost effective optical, electronic, mechanical and chemical solutions for measurement, control and automation. These systems have been applied with repeated success in the textile, life sciences and hydrocarbon processing industries