Cogo Security Technology Co., Ltd. (Cogo-st) is a leading manufacturer and worldwide supplier of advanced CCTV surveillance equipments and CATV headends equipments, including CATV channel modulators (agile/fixed channel), demodulators, amplifiers, mixers, CCTV cameras, DVRs and fiber optics (optical video transceivers). Our products are sold and well acknowledged by the customers in Europe, USA, South America, Middle East, Southeast Ascia, Africa and so on. Cogo-st owns a strong R&D team, a professional production team, a responsible QC team and an excellent sales team, which can ensure the quality of the products and the best services for customers with different demands. Cogo-st not only offers products with its own brand, but also can provide customers with OEM and ODM service. "Co-operate and go forward hand in hand" is Cogo-st&＃039;s motto and ultimate goal. Cogo-st is committed to provide its customers with products of high quality and the most reasonable prices in the same industry. We profoundly convince that Cogo-st will be your best choice! Please kindly log on www cogo-st com for more information, thanks!