Regulatory go-ahead for residential and commercial uses of the meters Domusnext® 2.0 MMU6 H2 and MMU40 H2. Padua, March 3, 2022 - SIT, a multinational company listed on Euronext Milan segment, that creates intelligent solutions for the control of environmental conditions and for consumption measurement, has completed the certification process of the residential and commercial meters operating 100% with green hydrogen.