• Video Input: 4x IP channels
• Video output: 1x VGA, 1x HDMI ( 4K  UHD )
• Max. recording resolution:  3840x2160 (8Mpx)
• max. bitrate: 80Mbit (input.) 80Mbit (output).
• compression format: H.265 /H.264/MJPEG dual-stream
• audio in / out: 1/1 (RCA)
• Network interface: 1x RJ45 Ethernet 10 / 100Mbps
• Drive Support: 1x  SATA HDD III  (max. 6TB)
• support for cameras with built-in video analytics
• split windows in local mode: 1/4
• playing in local mode to a 4-channel (2 ch. 8Mpx @ 4 can. @ 2Mpx)
• compliance with the standard: ONVIF, RTSP, SDK, CGI DOG
• P2P service
• a two-way audio track - intercom
• sound recording of 4 IP cameras
• Dualstreaming: the main and extra
• Advanced disk management HDD SMART technology
• 3D intelligent positioning with PTZ (over the network)
• Additional features: ANR,  Smart Search, Smart Add
• image previews:
  • Web browsers: IE, Chrome, Safari
  • mobile systems: iOS, Android
• dimensions 204.6x204.6x45.6mm (Smart 1U)

DHI-NVR4104-4KS2 is a low-budget network device, fully structures used in professional video monitoring. The device is part of an innovative series of recorders network series Lite  brand  Dahua , adapted for simple network video security systems in the resolution Ultra HD . Products Series Lite offers excellent performance and recording quality for the money. Modern series supports innovative encoding while maintaining energy efficiency.

Key parameters of the recorder

Presented recorder  DHI  NVR4104-4KS2  was devoted to an efficient monitoring of IP-based  4  IP cameras . The High High bitrate input 80MB / s allows for the efficient working with high-resolution cameras. The image captured by the device can be archived on a hard disk with a capacity of 6TB . The advanced compression technology, H.265 allows to further reduce the demand for bandwidth and disk space to 50% . In addition, powerful image management capabilities and its analysis provide access to high-quality features that were previously reserved only for the very technically advanced DVRs. The advantage of the recorder is also able to manage the functions of cameras with intelligent video analytics. The device is equipped at its port HDMI with support for 4K , a VGA port and 2 USB 2.0 ports. In addition, the product incorporates an audio interface that allows connection to the PA system.

Intuitive menu navigation

For the management and configuration of the recorder is responsible  device menu , which was based on reliable and pioneering operating system that is Linux. The use of this solution allowed us to create functional menus using, the installer and the end user is able to freely form  a monitoring system to suit your needs . Local menu recorder allows you to set: user rights and assign the number of users with the ability to remotely log in to the device, the recording schedule for each channel individually, select the protocol to control PTZ cameras and define its parameters, setting the detection zones and privacy masks and many other useful solutions to facilitate DVR management and monitoring of the entire system .

Support high-resolution cameras

Video NVR brand Dahua is a modern network device that has been designed to fully support high-resolution cameras. The device allows you to work with IP cameras that generate image resolution not exceeding  8Mpx ( 3840x2160 ).

Service analytics vision cameras

The advantage of modern network DVRs Dahua series NVR4xxx is served numerous  functions Intelligent Video Analysis (IVS) and the function of business analysis .

Intelligent image analysis (IVS)

Modern recorder provides the user with the ability to seamlessly use cameras with Intelligent Video Analytics (IVS). Configuring functions from the recorder results in a constant analysis of the recorded image, and allows fast capture adverse events. The functions include:  detection of crossing a virtual line in the area of intrusion detection, detection of disappearance / appearance of objects, face detection, change detection and obscuring of the camera lens and the detection of sounds.

Business Analysis - heat map

In addition, recorder works with cameras equipped with an intelligent function map of heat .  This feature is extremely useful in cases where the analysis of customer behavior in places  such as supermarkets, retail stores, etc.. The collected information can be useful for  entrepreneurs in determining the most popular goods.  Wise distribution of products helps to increase sales.

Business Analysis - people counting
In addition, the network DVR Dahua brand allows you to operate cameras with  innovative functions of a counting . The service allows trouble-free counting both those or other items exceeding the virtual area marked on the image. Application  functionality  greatly facilitates the use of the system and provides key information relating to, for example, the number of people visiting the store in a given unit of time.

Advanced functionality

Modern recorders Network brand Dahua  not only guarantee uninterrupted recording cameras 24/7, but also give the opportunity to adapt the parameters to the individual needs of both the user and the installation location. Developed a series of low-budget  DVR Lite  provides system solutions to operators with flexible control options and management of the whole monitoring system formed.

Support for PTZ cameras PTZ
NVR provide a simple and convenient way to manage the basic parameters of the PTZ network camera. Control various camera functions such as zoom and focus, rotation speed, preset functions , both manually define individual points, as well as entire patrol routes, ensures control of the monitoring system to the maximum extent possible, adapted to the needs of the user.

Privacy masks
Observation heterogeneous environment requires the use of advanced features that ensure capture only recordings of the priority areas for monitoring, often while maintaining respect for the privacy of the public. Corresponding to this demand is widely used in DVRs skillful masking system image using accurate privacy zones.

Smart Search - Smart Search
Function  smart search refers to search the recordings. During playback defined area of interest and searches recordings, which took place in the motion detection in a defined area. The most important fact is that programming does not need to know the system and program in this area. The user specifies only the image during playback.

Digital zoom
Digital zoom image is realized in an easy manner and opens up new possibilities in the process of adaptation of the monitoring post. This function is primarily used for the need to approximate the fragment displayed or recorded video in order to obtain a more detailed preview. Through the Digital zoom is possible, therefore, strict supervision of the priority areas in the security zone.

Smart Search - Smart Search
Function  smart search refers to search the recordings. During playback defined area of interest and searches recordings, which took place in the motion detection in a defined area. The most important fact is that programming does not need to know the system and program in this area. The user specifies only the image during playback.

Automatically add cameras - Smart Add
With the Smart Add installation of the IP system is as easy as analogue technology, whether NVR has a built-in PoE switch or not. The only requirement which must be remembered that the NVR must be in the same network as the camera.

The image at a resolution of 4k

Dahua  DHI-NVR4104-4KS2  is a high quality device that can capture and display an image in  ultra high-4K . The recorder is equipped with standard video output  HDMI  with support for 3840 × 2160 resolution and a connector  VGA , where the displayed image reaches a maximum resolution of 1920 × 1080 image standard  UHDTV (Ultra High Definition Television)  is displayed in 16: 9 format, characterized very great detail, preserving the natural color palette and high liquidity animation.

Increasing functionality via the USB port

Modern network recorder is also equipped with  2 USB  2.0 . They are used to connect external devices that increase functionality and facilitate the everyday operation of the system. To the USB port can be connected to, among other things: a computer mouse, which makes it easier to navigate the OSD recorder. The USB port can also be used to connect an external memory, and copy the selected video segments.

Data archivization
The device allows for monitoring recordings recorded on  a hard disk  positioned inside the recorder. When selecting the drive, pay attention to its capacity does not exceed  6TB . Save recordings it is also possible using the USB port. It allows you to connect high-capacity external hard drives, DVD recorder or miniature type portable memory stick. An additional form of archival recordings is the ability to transfer files from the device through the network to the local hard disk on your computer. Regardless of the preferred form of archival recordings video recorder NVR4104-4KS2 It ensures continuous data collection from both the behavior transmission rate, and an optimum level of security communication. Recording material constant monitoring ensures effectiveness of the treatment time 24 hours a day.

Support advanced H.265 compression

Equipment for IP video surveillance DHI NVR4104 4KS2 supports H.265  to provide a recording of monitoring the behavior of the output image quality and small size of saved files. Compression H.265  is a new video compression standard that provides twice better than H.264 compression - while maintaining the same image quality. The advantage of such a high compression efficiency is two times faster downloads, twice less demand for bandwidth is two times less space to store recordings on the DVR. H.265 standard has been designed to compress video at resolutions  of 4K Ultra HD  (3840 x 2160). H.265 compression format is only supported  natively  within  a single  manufacturer.

Additional capabilities recorder
Use of  SMART  in the logger by  Dahua  allows monitoring and alerting the user to errors occurring in the operation of the hard disk. Implementing this feature is to increase the safety stored on the recording media. Thanks to modern analysis, the  hard drive can assess their condition and if the failure is highly probable alert the operating system and the user's DVR. In addition, the recorder enables you to quickly configure a remote connection using the service  DDNS.

Function (ANR Automatic Network Replenishment)
An interesting feature of selected products used in the monitoring network brand Dahua is a  function of the ANR (Automatic Network Replenishment) . This service guarantees the continuity of the recordings in case of failure, disconnection or connection loss occurring between the camera and recorder. The system works on the principle of automatic detection of a problem with the network and the safe storage of recordings on  the microSD card  inserted inside the camera. After the failure recordings are automatically synchronized and in case of shortage recorder downloads the missing pieces directly from the camera.

Remote monitoring platform Easy4ip / Lechang

Service Easy4ip (Lechang)  is an innovative remote monitoring solution using  cloud computing . It connects millions of devices such as cameras, video intercoms or control panels in one global virtual network. This allows you to use the  service Easy4ip  (Lechang) systems and surveillance systems, smart homes and buildings. The solution allows you to view live video, record registration, notification and alarm imaging analytics via the internet from a PC (via the program or browser), or via mobile devices, for example. Smartphones - through dedicated mobile applications. Working in the cloud does not require a fixed IP address. Easy4ip service is an open platform - available SDK allows integration with other systems.

Mobile live preview access to the camera at any place and time	Updated in the cloud Remote firmware update equipment
Security Encrypted communication	Event Notification Alarm notification system
Global coverage servers Fast and reliable hybrid clouda

Easy4IP service / Lechang is available at:

Smart Software PSS

Comprehensive ordinance and supervision of the system and network security cameras to observe the effectiveness of any CCTV installation. The company  Dahua  designed for the user of personal computers  PC  and  MAC  developed software  Smart PSS  to the creation and personalization of their own surveillance system. Smart PSS can operate up to 256 devices and in addition to live viewing or playback allows for multimonitor operation, maintenance e-maps and e-PTZ support analytics vision and face detection option or advanced search individual events. Thanks to the versatility of the program is the ongoing management of real CCTV cameras both analogue high definition and megapixel IP cameras. The latest version of  the Smart PSS  can be downloaded  directly from the manufacturer .

Mobile aplications gDMSS & iDMSS

DMSS  is designed for mobile devices running  the Android  (gDMSS)  and  iOS (iDMSS)  to support / management monitoring system  Dahua  and  video intercoms IP family .

Wide range of applications

DVR Dahua  DHI NVR4104-4KS2 is the perfect solution that excels in many places the target system. High versatility recorder, its high quality, applied innovative technologies and the ability to work in multiple monitoring systems at the same time makes this device is very professional, yet easy to use and highly intuitive. The use of a number of modern features allows for comprehensive supervision and observation of how to personalize the protected object and thanks to the support of innovative technologies for archiving and processing of recordings can be completely maintenance-free operation of the recorder with the ability to preview an image and remote management of the entire system via computer and mobile devices. These functions provide great comfort and significantly increase user safety.

Specifications: