Profile: Physical Measurement Technologies, Inc. is a manufacturer of high accuracy instrumentation for the vertical transportation industry. Our EVA-625 elevator vibration analysis system is used for the measurement of elevator and escalator ride quality, and vibration & sound. Our ETCH01 tachometer module calculates elevator velocity and distance in elevator systems without the need of a tachometer. It can measure & record, or display in real time, direct drive speed measurements for escalator handrails & steps, escalator stops, elevator doors, or any moving system.