NHD-881 User Manual En/Fr/Es Here are the user guides for the NHD-881 4K NVR IP Camera. NHD_881_Instruction_Manual_English.pdf NHD_881_Instruction_Manual_French.pdf NHD_881_Instruction_Manual_Spanish.pdf Related articles NHD-856 User Manual En/Es How to Update NHD Camera Firmware on Your NVR System? NHD-850 / NHD-880 NHD-1200BE - Professional 6K (12MP) Add-on NVR Bullet Camera How to update the firmware of an NHD-875xx/NHD-876xxx using the 87x Upgrade Tool?