Optek Online Measurement Equipment (Shanghai) Co., Ltd. (hereinafter referred to as Optek China) is a limited liability company for import and export trade, technical support, and engineering services established by Germany's Optek Danulat GmbH in Shanghai, China. The registered capital is 200000 US dollars, and the legal representative Jurgen Danulat is also the owner of Germany's Optek Danulat GmbH. Optek Online Measurement Equipment (Shanghai) Co., Ltd. was established in August 2011, and its predecessor was the representative office of Germany's Optek Danulat GmbH established in Shanghai in March 2010. Optek has been operating independently in China for more than 8 years, widely serving various industries such as petroleum, chemical, pharmaceutical, food and beverage, papermaking, automotive, etc. An industry with a good reputation and excellent performance. Optek specializes in the research, design, and production of online optical analyzers, and has always been a leader in the field of online optical analyzers and a pioneer in their application areas. At present, Optek has a total of 120 employees worldwide and has achieved over 30000 sets of application performance worldwide. The optical analyzers produced include turbidity analyzer, chromaticity analyzer, concentration analyzer, ultraviolet analyzer, and conductivity analyzer. They are suitable for process pipeline pressures up to 325 bar and temperatures up to 240 ℃. There are various metal materials available for users to choose from when in contact with liquids, such as SS 316 Ti (standard configuration) SS 316 L、 Hastelloy, Monel alloy, Inconel alloy, etc., sealing materials include NBR Viton, EPDM, PTFE, and Kalrez are fully capable of handling most extreme working conditions. Optek's products have obtained TUV certification, ISO9001, PED, CE, GS, FDA-3A, ATEX, FM and many other certifications. Optek proposed the globally supported concepts of "SpeedParts" and "SwapRepair" (quick spare parts, spare machine repair), Optek branch and partners have always insisted on providing sensor spare parts within five days. If the controller is damaged, they will provide users with a fully functional controller for free as a backup, and help users return the damaged controller to the German factory for repair, reducing users' parking losses and minimizing the risk of accidents.