ENCO-METER systems allow for a simple, fast and economic way, the adaptation of rotating sensor devices (encoders, and potentiometers etc.) of linear distance measurements of up to 10 metres for machines with slow movement, without any sharp acceleration and with an average number of maneuvers. They consist of a stainless steel micro-cable that has to be connected to the machine’s mobile element at its free end. Inside the unit, the other end of the cable is wound on to a precision drum with a leaf spring to maintain it under constant tension. The drum shaft can drive any type of rotating sensor.