ECHONET Specifications Download of ECHONET Specification -ECHONET Specification Ver1.0 (English)   -ECHONET Specification Ver3.20 (English) (Only for members) NEW The original language of The ECHONET Specification is Japanese. The English version of the Specification was translated the Japanese version. Queries in the English version should be refereed to the Japanese version. Addition/Change of ECHONET Device Object/Service Object (Only for members) Issuance of Manufacturer code (Only for members) NEW