Abstract: A non-invasive, portable measuring and recording apparatus and method to detect, analyze, and report the operating velocity, deceleration, jerk, and stopping distance of escalators, moving walks, and other conveyor systems. The apparatus includes motion sensors to externally measure the motion of the escalator and to generate electrical pulses encoding those measurements, a stop trigger to activate the Emergency Stop Switch and to coordinate the resulting activation of the escalator's brake system with these motion measurements, a wireless switch sensor to detect the de-energizing/energizing of the escalator safety circuit, or brake solenoid as an alternative way to coordinate the activation of the escalator brake system with these motion measurements, electronic circuitry to collect and process these pulses, and a computer software program to display, analyze, save, recall, and print test data. Measurements may be made from either landing with the escalator running in either direction.