. . . researches, develops, tests and manufactures line leak detectors and electronic line leak detection for service stations, truck stops, boat docks, loading racks, day tanks and fueling systems. VmI also has developed and manufactures mechanical and electronic overfill protection systems for tanks, containment sump testers, pump shutdown modules with integration to site monitoring equipment, repressurization modules to eliminate thermal contraction, and leak detector field testing equipment. VmI supports its products with training materials for operator testing and certification for equipment installation and field testing services.