DEF Meters from Tops Equipment are the ideal instrument for controlling diesel exhaust fluid dispensing. The meters are easy to install and can be used in any DEF system. Simple, reliable, versatile, economic, the perfect instrument for managing diesel exhaust fluid deliveries. Thanks to a strong casing and a sealed plug-in electronic card, these sturdy DEF meters can be used in practically all conditions. Whether you need a DEF meter that can be installed directly to a nozzle, inline, at the end of a delivery pipe, or for a system that needs a pulse meter and remote display, Tops has a solution for your diesel exhaust fluid needs.