Multistandard AHD Recorder


Key features
  • Video channels: 8, audio channels: 8
  • Recording speed: up to 240 fps (AHD), up to 360 fps (IP)
  • Internal HDDs mount: up to 2
  • Monitor outputs: 3 (2 x main, 1 x spot)
  • Supports HD analog cameras (720p, 1080p, 4MPX, 5MPX, 8MPX)
  • Supports AHD, TVI, CVI cameras
  • IP cameras support (hybrid mode)
  • Intelligent image analysis
  • PIR cameras support

The mobile application allows for remote monitoring of a system based on 4000, AHD and Wi-Fi recorders via a smartphone with Android or iOS. The basic configuration of the recorder and cameras as well as PTZ control are available from the phone. The application allows you to connect to the recorder via P2P using a QR code, without the need for additional network configuration. In addition, it allows you to receive push alarms for selected alarm actions such as:
- crossing the line
- intrusion into the zone
- sabotage

Cooperation with cameras with a PIR detector

4000 Series recorders are able to receive a message about the detection of a moving object by a PIR detector built into the front panel of the camera. A passive infrared detector allows us to eliminate false motion detections caused by eg:
- lights of passing cars
- shadow movements
- reflections from shiny surfaces
- leaves / trees movement in the wind
The principle of operation of the PIR detector is based on the detection of heat changes in the detection zone, therefore the alarm is generated only when a human or other object that differs in temperature from the environment appears on the stage.

Configuration of cameras from the NVR


The recorders in combination with the cameras of the same series, apart from the configuration of basic parameters such as contrast or brightness, allow for a much more advanced interference with the camera settings. Depending on the functionality of the camera, from the recorder level it is possible, among others:
- changing the network settings of the camera
- stream parameters setting
- setting the zoom and focus in a camera with a motor zoom lens
- enabling and configuring the image analysis function

NMS Compatible

Novus Management System VSS software is an advanced platform for managing video monitoring system. Novus Management System VSS can combine different standards of CCTV: Analog, AHD, IP, and at the same time is a software with a high degree of flexibility, finding its application in both small and large and distributed installations

VCA Analysis

VCA (Video Content Analysis) features are a collection of techniques and algorithms that analyze and interpret video to detect threats, anomalies, or unwanted activities. VCA algorithms make it possible to detect and identify objects, analyze the movement of objects, including their tracking, but also allow, for example, face or license plate recognition. In thermal imaging cameras, VCA functions allow for early detection of fires.

The VCA in the cameras can operate automatically, without the need for human intervention, which enables a quick response to emergency situations.

ONVIF standard

The ONVIF standard allows for basic compatibility between devices from different manufacturers and brands. The camera + recorder set supporting the ONVIF standard guarantees that the camera will be found, added, recorded and will transmit information about motion detection.


The video encoding standard, which is the successor to the H.264 standard, which allows to save up to 35% of the bandwidth.

Hybrid Mode

The Novus AHD DVRs, thanks to the hybrid mode, are able to display, record and receive image analysis from including IP cameras. The combination of analog cameras with IP cameras in one recorder is particularly important in the case of modernization of the existing video monitoring system, as well as its future expansion.

AHD Multistandard

AHD recorders working in multistandard mode are able to handle analog cameras with different operating standards. Available standards are AHD, TVI, CVI, are the most common on the market, hence, the recorders will be compatible with most analog cameras from other manufacturers.

Video Input

8 x BNC

Operating mode

AHD 8Mpx, TVI 8Mpx, CVI 8Mpx, analog 960H

Monitor Output

main (split screen, full screen, sequence): 1 x HDMI (4K UltraHD), 1 x VGA (FullHD),

spot: 1 x BNC

IP Streams

DVR mode: 8 x BNC + 0 x IP

hybrid mode: 8 x BNC + 4 x IP

IP mode: 0 x BNC + 12 x IP

Supported IP resolution

max. 3840 x 2160

Audio Input/Output

8 x RCA (Line-in)/1 x HDMI, 1 x RCA


H.264, H.265

Recording Speed

240 fps (1280 x 720 - HD)

240 fps (1920 x 1080 - FullHD)

120 fps (2560 x 1440 - 4Mpx)

96 fps (2560 x 1944 - 5Mpx)

56 fps (3840 x 2160 - 8Mpx)

IP recording speed

hybrid mode: 120fps

IP mode: 360fps

IP stream size

hybrid mode: 24 Mb/s in total from all IP cameras

IP mode: 72 Mb/s in total from all IP cameras

Recording Mode

continuous, triggered by: REC/PANIC button, alarm input, motion detection, PIR alarm, image analysis


individual settings for: each camera, each day of the week, configuration with an accuracy of: 30 min, possibility of combining individual recording modes


up to 3 s/up to 5 min

Playback speed

240 fps

IP playback speed

240 fps

Recorded Data Search

by date/time, events, image analysis events, motion in a defined area, tags

Backup Methods

USB port (HDD or Flash memory), network

Backup File Format


Internal storage

available mount: 2 x HDD 3.5” SATA

Total Internal Capacity

16 TB

External storage

Network HDD (NFS or SMB/CIFS)

Total External Capacity

64 TB

Alarm Input/Output

8/1 relay type

IP Camera Alarm Input/Output

supports IP camera’s alarm input/output

Motion Detection

30 x 44 grid, individual settings of sensitivity, PIR cameras support

System Reaction to Alarm Events

buzzer, e-mail, alarm output activation, screen message, recording activation, PTZ, Full Screen, FTP picture upload, FTP video upload, picture to Cloud, video to Cloud

Intelligent image analysis
Number of channels

8 x BNC, 12 x IP (4000 Serie)

Supported functions for analog cameras

Exception, Line cross, Zone entrance, Sound detection

Supported functions for IP cameras

Exception, Line cross, Zone entrance, Abandoned object, Object disappearance, Face detection, Pedestrian detestion, Cross counting, Sound detection

Network Interface

1 x Ethernet - RJ-45 interface, 10/100 Mbit/s

Network Protocols Support


PC/MAC Software

NOVUS MANAGEMENT SYSTEM VSS, NOVUS MANAGEMENT SYSTEM AC, NMS, Internet Explorer, NHDR-5000 Viewer, Firefox, Chrome, Opera, Edge, N Control 4000/Safari, NHDR-5000 Viewer, N Control 4000

Mobile applications

RxCamView (iPhone, Android)

Number of Simultaneous Connections

up to 32 users, each user up to 5 devices


72 Mb/s in total to all client workstations

PTZ Ports

1 x RS-485

PTZ Protocols

Pelco-D, Pelco-P

PTZ Functions

pan/tilt/zoom, preset commands, patterns

COAX Functions

menu, zoom, focus, PTZ

Auxiliary Interfaces
USB Ports

1 x USB 3.0, 1 x USB 2.0

Operating system
Operating System



languages: Polish, English, Russian, others


PC mouse and IR remote controller (in-set included), network, NV-KBD50 keyboard

System Diagnostic

automatic control of: HDDs, camera connection loss


password protection, IP filtering

Installation parameters
Dimensions (mm)

378 (W) x 50 (H) x 340 (D)


2.5 kg (without HDDs)

Power Supply

12 VDC (100 ~ 240 VAC/12 VDC PSU in-set included)

Power Consumption

30 W (with 2 HDDs)

Operating Temperature

-10°C ~ 55°C

The recorder is dedicated to work with AHD cameras, Novus 4000 series IP cameras and achieves the best functionality with them. In case of work with IP cameras intelligent image analysis, dualstream mode, PTZ control, motion detection and alarm inputs / outputs functions depend on the functionality of the IP camera and the capabilities of the communication protocol. Detailed data on camera compatibility with recorders and compatible hard drives can be found in the compatibility tables available in the DOWNLOADABLE FILES tab.
Display and playback speeds are achieved using dual stream.
The recording speed of analog cameras may be limited during playback.
File name Description  
NHDR-4000AHD_full_EN_v.1.1.pdfUser manual 22.55 MB
NHDR-4308-H2_EN_PL_short_v1.0.pdfUser manual 6.08 MB
N_CONTROL_4000_EN_PL_1.1.pdfUser manual 2.39 MB
RXCamView_EN_1.0.pdfUser manual 1.76 MB
Utworzenie i konfiguracja serwera samba na PC oraz konfiguracja rejestratora_EN_PL_v1.0.pdfUser manual 411.3 KB
CE_NOVUS NHDR_4308_H2-sig.pdfCertificate 1.25 MB
N Control 4000_MAC_P2P(64)_2.10.05_2023_03_14.zipSoftware 105.95 MB
N Control 4000_P2P(64)_2.8.62_2022_09_22.exeSoftware 144.35 MB
NHDR and NVR4000 security recommendations rekomendacje bezpieczenstwa ENPL_3.pdfOthers 2.9 MB
Rejestratory AHD wydajnosc - AHD DVRs performance_04042022.xlsxOthers 30.82 KB
NVR, NHDR with IP cameras compatibility_Kompatybilnosc rejestratorow i kamer IP_17.06.2024.xlsxCompatibility table 352.79 KB
NVR-4000_AHD_WIFISET_Lista_dyskow_HDD_compatible_list_2023_10_31.xlsxCompatibility table 17.41 KB
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