Yes, you can have more than one meter in the same 'location' and you have to set different hierarchies between them. In every installation there must be at least one main meter and the rest of the meters must be linked either to the main meter or to another meter that is linked to a sub-circuit. For example, you can have a mirubox in a single-phase installation that measures the total consumption of a household with clamp 1 and that measures the plug sub-circuit with clamp 2. In addition, in one of the household's switches you can install a smart plug that can turn an electric heater on or off from a smartphone or be programmed to do so. Another example would be to install a Moti3 meter in the mains of a house that has a three-phase system and also install a mirubox with 3 clamps to measure the consumption of the air conditioning, the charging of an electric car and the photovoltaic production.