https://sfere-elec.net/product/DDSF1946-2P-din-rail-mounted-energy-meter-44.html
DDSF1946-2P Din Rail Mounted Energy Meter | Bi-directional Energy Meter in USA-Sfere Electric
Bi-directional Energy Meter - The din rail mounted electric energy meter adopts advanced energy metering chip, which is designed and manufactured by digital...
din rail mounted energy meter