ODALID deploys its innovative IoT solution to measure environmental quality (temperature, humidity, air quality) and energy metering in buildings. This solution reduces energy consumption while increasing the working qualities of employees. It also makes it possible to optimize or detect the various malfunctions of HVAC (Heating, Ventilation and Air Conditioning). The advantages of the solution are: state-of-the-art and innovative technology, ease of installation, security, open and communicating IoT platform