IHD3-PPMID is an integrated In Home Display and Prepayment Interface Device. It communicates with the meter set using Zigbee Smart Energy 1.2b. The householder can view their energy information on the display. The user interface is easy to navigate and the product uses 7 touch sensitive buttons. In addition the IHD3-PPMID provides the user with the ability to top-up their prepayment account and re-enable their electricity supply.