We,Shanghai MEZEN Instrument Co., Ltd specialize in design, R&D, manufacturing and sale of fiber optic products and accessories. We focus on delivering high quality customer service and are accredited with the ISO9000. In addition, we also obtain certifications of the ISO14001 and the Occupational Health and Safety Assessment Series18001. We offers a wide range of highly optical fiber test instruments, competitive active and passive fiber optics products.  1. Fiber Optical Passive Products Our passive products includes fiber optic splitter, PLC splitters,FTTx WDMs,CWDM,Attenuators, Adapters, Fiber Optical Connectors, Fiber Optic Patch Cords, fiber optic pigtail, fiber optical cables, MTP & MPO etc. They are distinguished by our large capacity and high-end products. In terms of production capacity, we have an absolute advantage over our competitors and is a key player in the field of passive product manufacturing. Monthly production capacity is currently at 5 million terminations with undergoing plans for expansion. 2. Fiber Optical Testing Instrument Fiber optical testing instrument such as Handheld Optical Power Meter, Light Source, Visual Fault Locator, Multi-meter (Loss tester), OTDR,Fiber Ranger,Optical Fiber Identifier, Optical Talk Set,Optical Attenuator; Bench-top Optical High Stable Laser Source, ASE Laser Source, SLED laser Source, Optical Power Meter, Optical Return Loss/ Insertion Loss Test Station and Bench-top optical Attenuator. At present, we are the No.1 manufacturer of Handheld Test Instruments (Power Meter and Light Source), exceeding its domestic rivals in terms of sales volume with its high performance cost ratio and considerate services. 3. Active Products, They are OLT and ONU, such as fiber to video converter, protcol converter, media converter, fiber optical modem and SFP Transceiver, which are equipped with multiple function capabilities and customized software technology, demonstrate superior technical expertise. A strong research and development team delivers our customers with high performing products, while our post-sales team provides comprehensive support. Both services are designed to provide our customers with excellent service, delivery, and support. All of our products are qualified with the Network Access License, issued by the Ministry of Industry and Information Technology of the People's Republic of China. Possessing the following strengths and characteristics, we have achieved a dominant position in both domestic and international markets. We have a strong technical & QC team with over 10 yearsâ extensive experience. We could assure customer satisfaction, product quality and reliability through approvals from the CE, FCC and ROHS, as well as the maintaining competitive prices. In the international market, we have developed a solid reputation in targeted regions, including the US, Europe, Asia and etc., through partnerships with various leading industry companie