Our company adheres to 'integrity and quality as the foundation' policy, and establishes a good long-term cooperative relationship with customers at home and abroad, and strives to build itself into a Non-distortion AHD Fisheye Camera, 4Channel Mobile DVR, Onboard IP Dome Cameras For Buses manufacturer that new and old customers can trust for life. Watchdog Electronics is one of China's professional manufacturers and suppliers specialized in AHD NVR, as well as AHD NVR. Feel free to buy quality AHD NVR at cheap price in our factory.