REASON International is introducing its line for Traveling Wave-based fault location in the North American market. Wave detection error due to misinterpretation of the fault is a major kind of error in many types of traveling wave-based equipment on the market. REASON has developed a very reliable method in order to record the correct traveling wave. The approach is to acquire the traveling wave data by using a very high-speed data acquisition module triggered by user-set thresholds over computed and continuously monitored values coming from signals in the fundamental frequency of the electric system.