TOPTIME TRADE CO.,LTD. Home Company Info Product List Index Product Info DDS2222 series ammeters use digit energy measurement and SMT technologies. Key parts use famous company's components to ensure the reliability and use life. The product has anti-fraud function to measure AC energy with reference frequency 50Hz or 60Hz. Asian-Manufacturer.com - China Supplier - Product Catalog - Biz Info - Advertising - Feedback Your use of this website is subject to, and constitutes acknowledgement and acceptance of, our Terms & Conditions. Copyright @ 2007 Asian-Manufacturer.com Technology Co., Ltd. All rights reserved.