Multi-mode thickness measurement device and methods

A multi-mode thickness measurement device for measuring a thickness of a sample, the measurement device comprising an operative end and a body defining a longitudinal axis, wherein the operative end comprises:

• a magnetic thickness sensing system;
• and
• a capacitive thickness sensing system, and wherein the operative end extends from the body along the longitudinal axis, wherein the sample being measured by the measurement device is to be placed against the operative end such that the thickness of the sample along the longitudinal axis is measured, wherein the body comprises a handheld body portion, wherein the operative end is at a distal end of the handheld body portion, wherein the measurement device further comprises a circuit board comprising a capacitive-sensing integrated circuit and a magnetic-sensing integrated circuit, wherein the capacitive thickness sensing system comprises a conductive inner tube and a conductive outer tube, wherein the conductive inner tube and the conductive outer tube are concentric, and wherein the circuit board is positioned centrally with respect to the conductive inner tube and the conductive outer tube.