|There are numerous kinds of measuring cars and speed indicators, also stationary equipment like photoelectric barriers and a whole lot of advices avaiable. Also modern digital driving devices indicate the current speed of the vehicle.
However, there is a more universal, more flexible and above all better way:
The Model Railroad Chronograph.
The Model Railroad Chronograph works independend from scale and model railroad system, direct or alternating current, 2-rail or middle conductor tracks, analog and digital controls, or display without bias simply according to the laws of time and mechanics with the precision and neutrality of the Swiss clockwork.
The Model Railroad Chronograph is suited for the spontaneous, playful measuring just as for the exact adjusting of locomotive decoders or balancing of digital displays and control devices.