In 2007, Erik developed the first Modu-Tool, a universal service tool for elevator technicians. At a time when multiple tools were required for different elevator brands, Modusystem introduced a faster and more efficient solution for multi-brand elevator maintenance. The compact handheld terminal supported the five largest elevator brands and was designed to improve service speed and reduce downtime.

The original 10-inch black model later evolved into a more advanced 7-inch blue version with a modern LED display, offering improved usability and performance. Today, the Modu-Tool remains a key innovation in elevator service technology, continuously evolving to meet the needs of technicians worldwide.