Aitelong Technology Co., Ltd, being one of the biggest test/measurement and Battery/UPS maintenance equipment manufactories and suppliers in China, would like to invite to our business and enjoy the advantages. Aitelong Technology Co., Ltd is a high-tech and professional enterprise, located in Xi’an Software Park and devoted to R&D, manufacturing, marketing and exporting of various communication network instrument, test instrument equipment, ADSL/Tel Line test equipment and storage battery maintenance equipment .Our products fall into the following main categories,   Data/Transmission analyzer (2M Transmission Analyzer “E1 BER tester”, PCM Channel Analyzer)  Communication cable tester (CardTest ADSL, ADSL2+Tester)  Optical communication tester (Optical Power Meter/Laser Source, Optical Visual Fault Locator, Optical Multimeter, Optical Talk Set, Optical Fiber Identifier,Optical Attenuator, Optical Fusion Splicer, OTDR, Fiber Cleaning Tools kit)  Mobile network tester ( Tel Line Tester, Tel Cable Fault Locator)  Battery/UPS testing and maintenance equipment (Storage Battery Comprehensive Tester, Discharge Tester,AC/DC Load, Automated Charger, Battery Activator, Battery Online Monitor System, Battery Internal Resistance Tester)  Earth resistance tester (Double/Single Clamp Earth Tester, Digital Insulation Tester)