Analogue draw wire displacement sensors are suitable for position measurement and motion control by tracking the “voltage” or “current” signal delivered by the sensor. For this purpose, a multi-turn potentiometer is coupled to the drum, so the mechanical movement is converted into a resistance value according to the movement of the mobile. Depending on the version selected by the user, the sensor delivers a voltage from 0 to 10V or a current from 4 to 20mA.