PST Sensors, a Cape Town nanotechnology company started by two physicists David Britton and Margit Härting, has produced a printed temperature sensor that is at the heart of a thin-film sensor label.

Here is the circuit of a little label sensor ideal for detecting labels on bottles. The circuit offers a peak sensing distance of 2.5 mm (operating range 0.2 mm to 15 mm) backed up by the proven ...