hd4dThe HD4D is a surveillance solution desned for object recognition that is required in locations where low lht and variable lht conditions exist. Set-up is quick and easy and can beThe HD4D Series offers three hh resolution camera options suitable for a variety of outdoor environments: HD4D3S (3.3-12 mm VFAI lens), HD4D9S (9-22 mm VFAI lens),