HANGZHOU officially launched its mini PT/PTZ IR cameras, offering a broader suite of professional functions compacted into a smaller size, which makes it easier for installment, night filming and visual detail capture. Integrating starlight technology and 3x optical zoom, Dahua?s latest mini PT/PTZ IR cameras offer a family of solutions with the classic series of SD1A and SD12, which are well recommended for small & middle-size area surveillance.