Electro-Sensors supports the manufacturing process with sensitive loving care. The company's Product Monitoring Division, which accounts for the bulk of sales, makes computerized systems that monitor and regulate the production speed of industrial machinery. Products are sold worldwide. Electro-Sensors also has an AutoData Systems unit, which makes software that reads hand-printed characters, check marks, and bar code information from scanned or faxed forms. The unit has an exclusive license to use a neural network algorithm developed by PPT Vision. Its software sells mostly in North America and Western Europe. Electro-Sensors director and secretary Peter Peterson and his family own 38% of the company.