A bi-stable sensor is provided that includes a frame upon which electrical and optical components may be disposed and a coating, such as an overmold coating, provided about the frame. Devices provided by this invention may be high-speed singulators occupying minimal floor space area. On the upper side of the capacitor element is provided an embossed copper foil 11 for suppressing deformation of the capacitor element. Furthermore, the data is conditionally scanned utilizing the first virtual machine based on the determination.