Multi-stage capacitive sensor

A method of constructing a multi-stage capacitive sensor, the method comprising the steps of:

• a] providing a first capacitive sensor;
• b] providing a conductive member which is engagable with the first capacitive sensor;
• c] providing a second capacitive sensor;
• d] positioning the conductive member between the first and second capacitive sensors, the conductive member being spaced apart from the second capacitive sensor;
• and
• e] affixing the first capacitve sensor at or adjacent to a user-contact surface so as to be arranged to act as a capacitive touch sensor for the user-contact surface, and that, under the application of a force at the user-contact surface, a relative motion of the conductive member and second capacitive sensor is effected such that a distance therebetween is altered to create a detectable change in a capacitance at the second capacitive sensor.