Martronic Engineering, Inc. (also known as MEI) is a family-owned business located in Simi Valley, California. We have been a leading manufacturer of machine control systems for agriculture and construction since 1978. While our primary focus is laser-related systems, our design staff offers customized service for many mechanical applications. No job is too small. Our client base includes prestigious international corporations to owner-operators. From high-end laser leveling machine control systems to hand-held rod sensors, our staff is here to serve your needs. We offer field support and evaluation on any application. MEI also carries a full line of survey instruments and safety supplies to meet all your needs.