GLAS Energy Technology is an Irish company specialising in the development of products for metering and data logging. GLAS Energy Technology's devices provide solutions for meter data logging via wired and wireless connections. We use industry standard protocols such as BACnet, M-Bus, Wireless M-Bus, Modbus and Modbus TCP to ensure that our products can integrate with the widest possible range of systems. Our products have been used in applications ranging from single meter data collection to plant wide multi meter, multi building systems collecting electricity, water, oil, gas and other information. We have also implemented data logging solutions for apartment billing applications using M-Bus and BACnet.