Company was established 1965 by Mauno Kari, who invented the Multilevel Float Switch, that has since then been our main product which we have manufactured hundreds of thousands pieces. Kari Switch presented 1977 at International Inventors Fair in Brussels, and it awarded Gold medal Brussels town for a being widely exported. ...

Controtel Technology Oy is a small entity, which consentrated for very early phase R&D. Our customer are from offshore industry, defense, cruise shipd and cars to telemetry process control systems. way serve our customers is, that often we start development unique needs, develop solution andmake the prototype. Production will ...