Hangzhou shenghan(STK) Electronic & Technologes Co., Ltd is a professional CCTV surveillance manufacturee which former name is hangzhou jihan technologies company.Headquartered in Hangzhou city of Zhejiang province, the company has build up many branches and offices nationwide. Meanwhile, we also build up good relationship with Installers and Security Solution Providers. Over the years experiences in security industry, we make focus on cctv&surveillance system equipment. The products range including PTZ speed dome camera, fixed box camera, IR camera, IP&network camera and other accessories.We welcome all your inquiries, not matter it is for order, information service, or technical support. Come with us, make differences.