In a notable development, THINK Gas has implemented bluetooth enabled smart gas meters for its domestic household customers. The meters are based on proven G4 measurement unit with an electronic index and isolation valve. It uses ZigBee radio to link the head end system with the in-home display through a smart communication hub. They are simple to install and allow feature upgrades and changes in functionality, if required, via remote firmware upgrades. The adoption of these smart meters gives way to the old process of manual monthly meter readings.