Since its establishing, ELA has been specializing on the production of electronic devices for measuring of liquid flows both in pipeline and open flow cross-sections, and of liquid levels in tanks. This specialization arose from the fact that before 1989, most of ELA employees had been working in SIGMA Brno-nearly a monopoly producer of this kind of equipment in the then Czechoslovak Republic. All ELA devices ( ISO 9001 ) have been designed based on our own, still ongoing, development. We put not little resources into the development as well as production equipment. Apart from the development and production, we also provide after-sale service for our supplied measuring devices.