About JoinwitJoinwit Optoelectronic Technical Co., Ltd., as a leading manufacturer, was established in the Min Hang Hi-tech Park of Shanghai in 1998. It specializes in design, R&D, manufacturing and sale of Fiber optic test instruments and passive components.Our Products and Service1. To provide products designed and manufactured by Joiniwit.A. Fiber Optic Test InstrumentsHandheld 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, Joinwit is 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.B. Fiber Optic Passive ComponentsJoinwit highlight passives includes Fused Couplers, PLC splitters, FTTx WDMs, CWDM, Attenuators, Adapters, Patch Cords etc. Since its establishment in 1998, Joinwit has been starting out to manufacture optical passive components. With years€™ experience and hard efforts, Joinwit has set up a dominant position in the industry in China.C. FBT System (Coupler Work Station)Joinwit is one of the few manufacturers that specialize in Coupler Working Station. The coupler working stations we produce are widely used on many passive components manufacturers of Beijing, Tianjing, Shanghai, England, New Zealand, etc.D. Tool kits for Optical Cable Construction and CleaningJoinwit can provide customer not only for its standard configuration tool kits, but also can customize tool kits for customer on the basis of a certain demand of quantity.2. To provide variety of custom Fiber Optic Products for OEM and ODM servicesWith many years€™ manufacturing experience in Fiber Optic Test Instruments and advantages