Yoya Tech Co. Ltd. (Zhejiang YongYang science and technology CO., LTD) is a famous designer and manufacturer of a wide variety of energy meters for both domestic and commercial use. We have been serving in this sector since long and are in a convenient position to provide excellent energy measurement technique .ã??ã??We can customize and accept OEM and ODM orders as well. Our annual production is over 1.5 million pcs. Our production features low cost due to designing and manufacturing almost all parts by our own technical team, especially the core part, electronic module board. As a reputed manufacturer and supplier of both meter parts (mainly electronic module boards) and energy meter units, we are professional to regulate our energy meters into a highly competitive product. All products and facilities of our company are in compliance with the requirements of the standard ISO 9001:2009. Yong Yang Technology Co, .ltd is a fully aware of the fact that only Distinctive Quality, Advanced Technology and Best service can help us survive and succeed in today's highly competitive market.