Dahua 4 channel NVR

The Dahua NVR2104-S3 is a powerful network video recorder (NVR) designed for efficient and reliable surveillance operations. This device is equipped with 4 channels (cameras connectable via network switch with PoE), allowing simultaneous recording of multiple cameras, making it an ideal choice for small to medium security setups. The NVR2000 is equipped with SMD Plus technology, which as perimeter protection via the camera automatically filters false alarms caused by animals, rustling leaves, bright lights, etc. Enables the system to do secondary recognition for the targets. Improves alarm accuracy. SMD Plus through a camera with an intelligent algorithm, Dahua Smart Motion Detection technology can categorize the targets that trigger motion detection and filter the motion detection alarm triggered by uninvolved targets to realize an effective and accurate alarm. The Dahua NVR2104-S3 supports recording up to 8MP resolution, guaranteeing high-quality video images. It also features H.265/H.264 decoding, which ensures efficient compression and high-quality video playback.With its Smart Add function, this NVR allows you to easily add and set up new cameras. It also supports Intelligent Video System (IVS) features such as line crossing and intrusion detection, giving your surveillance system an extra layer of security.The Dahua NVR2104-S3  also offers remote access options. Using the Dahua mobile application or via a web browser, you can access live video feeds or play back recorded footage anywhere, anytime.In summary, the Dahua NVR2104-S3 is a robust and reliable solution for your surveillance needs, with high-quality recording, easy installation and advanced security features.

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The Dahua NVR2104HS-I2 is a compact, powerful 4-channel network video registrar (NVR) from Dahua's WizSense series. This recorder is designed for small to medium-sized IP surveillance installations where both image quality and modern analysis capabilities are important. Thanks to high resolution support, efficient compression and built-in AI features, it offers an excellent balance between functionality and price. Key features & specifications Number of camera channels supported: 4 IP cameras.  Video compression: Smart H.265+ / H.265 / Smart H.264+ / H.264 / MJPEG.  Maximum decoding: up to 6×1080p@30fps (with AI disabled) and adaptive decoding supported.  Supported recording resolutions: up to 12 MP (~4000×3000 pixels) as per specifications.  Smart AI analysis features: 1 channel face detection & recognition by the recorder itself (“AI by Device”).  1 channel perimeter protection (lines/intrusion) through the recorder.  4-channel SMD Plus (Smart Motion Detection) for human/vehicle recognition, false alarm filtering.  Video outputs: 1 × VGA and 1 × HDMI (simultaneous).  Bandwidth: Access (input) 80 Mbps, storage 80 Mbps, throughput 60 Mbps.  Storage: 1 SATA hard disk drive (HDD) slot. Maximum up to approximately 10 TB according to catalogue.  Network & compatibility: Supports ONVIF (profile T/S/G), various protocols such as HTTP/HTTPS/RTSP/DDNS; suitable for access via Android/iOS.  Physical Properties: Compact 1U housing; weight approximately 0.81 kg without HDD.  Environment: Working temperature -10 °C to +55 °C.

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