PiCap is microcontroller based, working on ultra high frequency principal, capable of detecting metallic and non-metallic objects at distances, reliably and efficiently. PiCap sensitivity is factory set to detect most of the available substances in common Industrial applications. Since the detection range depends on the dielectric constant of the media and the nearness of objects surrounding the installation; in special cases, the sensitivity may need adjustment. The detection distance can be set by non contact magnetic switch for a desired distance within the PiCap limits.