Sensor device and method

A sensor device for determining a position of an operator's finger/hand, comprising:

• a handle portion comprising a non-conductive core with one or more walls defining an internal cavity, and a plurality of touch sensing electrode portions supported in or on the one or more walls of the core, each touch sensing electrode portion configured to provide an electrical signal in response to the operator's finger/hand being on or near a sensing surface of the respective touch sensing electrode portion, wherein each touch sensing electrode portion comprises an exposed contacting surface located on and accessible from the cavity side of the respective touch sensing electrode portion, and
• a measurement module mountable within the cavity of the handle portion to a fixed position, the measurement module comprising a plurality of electrical connectors, each electrical connector configured to mechanically contact the respective contacting surface of one of the plurality of touch sensing electrode portions directly from the cavity side when the measurement module is mounted in the fixed position to receive the electrical signal from the contacted touch sensing electrode portion, the measurement module further configured to determine a position of the operator's finger/hand relative to the plurality of the touch sensing electrode portions based on each electrical signal received,
• wherein each touch sensing electrode portion is moulded from a thermo-formable non-metallic conductive material.