This device has the characteristics of both a digital video and audio recorder (DVR) and a digital video and audio server (DVS), which can work independently locally or form a powerful security monitoring network through networking.

The system adopts a graphical user interface and supports three operation modes: USB mouse, panel, and remote control.

● True full duplex function, recording and playback can be performed simultaneously.

4 channels of video, 4 channels of audio fully synchronized input in real-time, and 1 channel of voice intercom.

Under CIF video clarity, PAL (352x288) recording system has a total resource of 100 frames per channel and can achieve real-time independent hardware compression of 25 frames per second (adjustable) per channel. NTSC (352x240) recording system has a total resource of 120 frames per channel and can achieve real-time independent hardware compression of 30 frames per second (adjustable) per channel. The video compression adopts H.264 compression technology and supports fixed rate and variable rate compression, as well as variable frame rate compression.

The audio compression standard adopts G.711A.

A single machine can support up to 2 2000GB SATA hard drives.

● Timer recording, manual recording, motion detection recording, alarm recording, any method is optional.

At the same time, 4 channels of CIF full real-time recording and network transmission, 1 to 4 channels of CIF playback with any number of channels, and can support 1 channel of D1 full real-time recording at the same time.

● Video playback can be searched by channel number, video type, and video time, supporting functions such as fast playback, slow playback, single frame, previous segment, and next segment.

Supports one USB 2.0 high-speed interface and one USB 1.1 interface, providing backup of hard disk recording data, and supports USB flash drives and USB hard drives.

Preview supports single channel and multi-channel display, and supports automatic switching between single channel displays.

● Able to handle image occlusion alarms.

Supports 485 gimbal control with multiple protocols, supports gimbal preset points, cruise and trajectory functions, and supports gimbal keyboard control.

● 4-channel alarm input and 1-channel alarm output, supporting alarm schedule setting, and supporting alarm linkage function when abnormal events such as motion detection occur.

Multiple types of user permissions can be customized. In addition to one administrator, multiple user types can be set through "User Management Permissions", which increases the flexibility of user permission security management.

● Can achieve 3G mobile phone monitoring.

● Support alarm email prompts.

RJ45 network, capable of remote monitoring, playback, backup, and control of pan tilt zoom lenses.

● It can be used for two-way voice intercom or one-way voice broadcasting between remote PC and network hard disk recorder.

The system menu supports twelve languages including Chinese and English.