The cards have a built-in electronic contact element, which when it comes in contact with the card reader automatically turns on or off the power or water supply depending on the user’s choice. At the end of the year, the user can get back the remaining amount or credit his card with the desired amount.
The cards are re-registrable, reusable, and operate with a NON-CONTACT system. The prepaid system requires for its operation only the power supply of Pillar and operates autonomously without requiring connection to a central PC, via wired or wireless network. The cards communicate via radio frequencies with the Pillar electronic system, by simply placing them on its outer surface.