Supports 4 channels of IP camera input for video recording.
Compatible with video formats like Smart H.265+, H.265, Smart H.264+, and H.264 for efficient video compression.
Supports recording and playback resolutions up to 12 MP depending on the model, with smooth decoding capability (e.g., 2 channels at 8MP or 4 channels at 4MP/1080p).
Offers simultaneous video output through HDMI (supporting up to 4K resolution) and VGA ports for flexible display options.
Features include two-way audio support, multiple recording modes (manual, alarm, motion detection, and scheduled recording), and smart video analytics like motion detection and alarm triggering.
Network bandwidth support typically around 80 Mbps for input/storage and 60 Mbps for forwarding.
Supports local storage via SATA hard drives, often with 1 or 2 bays supporting up to 12-16 TB total capacity.
Compatible with ONVIF standards and supports remote access via mobile apps for surveillance and playback.
Designed with an easy-to-install compact form factor suitable for small to medium applications such as public safety, transportation, education, and financial institutions.
Warranty
Dahua typically provides a 3-year warranty for most NVR models, including the 4-channel series, covering manufacturing defects and hardware repairs.
The warranty excludes consumable parts such as hard drives, power cords, fans, and batteries, which often have shorter warranty periods.
Warranty service requires proof of purchase (invoice or GST bill).
Some specific Dahua product lines may have longer warranty periods (up to 5 years for selected products), but for standard 4-channel NVRs, a 3-year warranty is common.
If no purchase receipt is available, the warranty period usually starts 60 days after the shipment date from Dahua.
Example Model Specifications (e.g., DHI-NVR2104HS-S3)
4 IP channels, up to 12 MP resolution.
One 3.5" SATA hard drive bay with support for up to 16 TB.
Video output: 1 HDMI (4K) and 1 VGA (1080p).
Network: 100 Mbps port.
Operating temperature: -10 °C to 55 °C.
Power consumption around 10 W.
