RONG TIAN SHI TECH LTD (LOGO: Ratingsecu) is a professional high-tech enterprise which engaged in research, produce, and sell CCTV system products. We have the best engineers in this industry to design and research the products.Our main products including:1. Intelligent IR High Speed Dome Camera ( patented ),2. Intelligent IR Medium Speed Dome Camera ( patented ),3. Intelligent IR Constant-speed Dome Camera ( patented ),4. Network IR Intelligent Dome Camera,5. Auto Temperature Control Type-IR Night Vision Integrative Camera (patented),Long Range ( single / double CCD ) and High Definition,6. Network Infrared Camera,7. and other patented products that are leading technologies in the industry.