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The B METERS Hydrocal M3 is a simple, compact mechanical thermal energy meter which measures the amount of energy used for heating or cooling. It has been approved according to the MID 2004/22, CE MI004, and EN1434 standards.
The thermal energy meter, the HYDROCAL-M3, uses an innovative data collection system which registers rotation in the turbine on the principle of induction. This prevents manipulation with magnetic fields and guarantees long-term reliability.