Dahua Technology 4-Channel 8MP NVR with 2TB HDD and 4 4MP Night Vision Mini Turret Security Cameras

Brand :Dahua


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Dahua Technology N444E42 Overview

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Monitor your home or business with the 4-Channel 8MP NVR with 2TB HDD and 4 4MP Night Vision Mini Turret Cameras from Dahua Technology. The NVR enables you to record from and manage the four included network cameras. It comes with 2TB of preinstalled HDD storage that can be expanded up to 6TB if more is required.

The NVR uses H.265 and H.264 compression to keep file sizes manageable while maintaining recording and playback quality. Its interface includes RCA ports for two-way audio communication, as well as HDMI and VGA connections for video output.

Each of the four included 4MP mini turret cameras captures 2688 x 1520 resolution video at 20 fps in a 104 x 57° field of view using its 2.8mm fixed lens. Built-in IR LEDs provide a night vision range of up to 98′. Designed for outdoor use, the cameras are housed in IP67-rated weather-resistant enclosures.


Recording options and schedules can be set for each individual camera or copied to all camerasIntelligent video analytics include tripwire violation detection, intrusion detection, abandoned object detection, missing object detection, face detection, tamper detection, and sudden scene change detectionONVIF compliant


Embedded quad-core processorSmart H.265+ and H.264 dual codecVGA at up to 1920 x 1080 resolutionHDMI output at up to 3840 x 2160 resolutionUp to two channels of 8MP or four channels of 4MP decodingUp to 80 Mb/s incoming bandwidth2 x USB 2.0 ports


1/3″ 4MP progressive-scan CMOS sensorUp to 2688 x 1520 resolution at 20 fps2.8mm fixed lensIR LEDs for low-light performance up to 98’Smart IR for uniform brightness in B&W images under low illumination; LED intensity adjusts in proportion to object distance, preventing overexposure as objects move closer to cameraBuilt-in heater for use in cold environmentsBroad operating temperature range, -22 to 140°FIP67 rated for outdoor use

Dahua Technology N444E42 Specs


Main ProcessorQuad-Core Embedded Processor
Operating SystemEmbedded Linux
IP Camera Input4 Channels
AudioInput: 1 x RCA
Output: 1 x RCA
Video CompressionH.265, H.264
Supported IP Camera Resolution8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, 1.3 MP, 720p, 960H, D1, CIF
Maximum Recording Rate80 Mb/s
Bit Rate16 kb/s to 20 Mb/s per Channel
Recording ModesManual, Schedule (Regular, Continuous), Motion Detection, Tampering, Video Loss, Stop
Record Interval1 to 120 Minutes (Default: 60 Minutes)
Pre-Record: 1 to 30 Seconds
Post-Record: 10 to 300 Seconds
Display Interface1 x HDMI
1 x VGA
Native Output ResolutionHDMI: 3840 x 2160, 2560 x 1440, 1920 x 1080, 1280 x 1024, 1280 x 720
VGA: 1920 x 1080, 1280 x 1024, 1280 x 720
Maximum Decoding2 Channels of 8 MP at 30 fps
4 Channels of 4 MP at 30 fps
Multi-Screen Display1/4
On-Screen DisplayCamera Title, Time, Video Loss, Camera Lock, Motion Detection, Recording
Network Interface1 x RJ45 Port, 10/100 Mb/s
PoE Interface4 x Ports (IEEE 802.3af/at)
Network FunctionHTTP, HTTPS, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE, DDNS, FTP, SNMP, IP Search (Supports Dahua IP Cameras, DVRs, and NVRs)
Maximum User Access128 Users
Mobile Operating SystemsiOS, Android
InteroperabilityONVIF 2.4, SDK, CGI
Trigger EventsRecording, PTZ, Tour, Video Push, Email, Snapshot, Buzzer, and Screen Tips
Video DetectionMotion Detection, Video Loss, and Tampering
Motion Detection Zones: 396 (22 x 18)
Search ModesTime/Date, Alarm, Motion Detection and Exact Search (Accurate to 1 Second), Smart Search
Playback FunctionsPlay, Pause, Stop, Rewind, Fast Play, Slow Play, Next File, Previous File, Next Camera, Previous Camera, Full Screen, Repeat, Shuffle, Backup Selection, and Digital Zoom
Backup ModesUSB Device and Network
Internal HDD1 x SATA Port, up to 6 TB Capacity
2 TB HDD Preinstalled
HDD ModeSingle
USB1 x USB 2.0 Port, Front
1 x USB 2.0 Port, Rear
Power Supply48 VDC, 1.5 A
Power Consumption<7.5 W, Without HDD
PoE PowerSingle Port: 25.5 W
Total: 50 W
Safety CertificationUL 60950-1, EN 60950-1
Electromagnetic CompatibilityFCC Part 15 Subpart B, ANSI C63.4-2014
EN 55032, EN 50130-4
ImmunityEN 55024
Operating Conditions14 to 131°F / -10 to 55°C
86 to 106 kPa
Storage Conditions-4 to 158°F / -20 to 70°C
0 to 90% RH
Dimensions8.1 x 8.1 x 1.8″ / 204.6 x 204.6 x 45.6 mm
Weight0.99 lb / 0.45 kg, Without HDD


Image Sensor1/3″ CMOS
Effective Pixels2688 x 1520, 4 MP
Scanning SystemProgressive
Electronic Shutter SpeedAuto, Manual: 1/100,000 to 1/30
Minimum IlluminationColor: 0.08 Lux at f/2.0 (1/3 Second, 30 IRE)
B&W: 0.3 Lux at f/2.0 (1/30 Second, 30 IRE)
0 Lux with IR On
S/N Ratio>65 dB
IR Range98.04′ / 30 m
IR ControlAuto, Manual
Lens TypeFixed
Mount TypeBoard-In
Focal Length2.8mm
Maximum Aperturef/2.0
Angle of View (H x V)104 x 57°
Focus ControlFixed
DORI DistanceDetect (8 ppf): 207′ / 63 m
Observe (19 ppf): 82′ / 25 m
Recognize (38 ppf): 43′ / 13 m
Identify (76 ppf): 20′ / 6 m
Adjustment RangeHorizontal: 0 to 360°
Vertical: 0 to 90°
Rotation: 0 to 360°
Video CompressionSmart H.265+, H.265, Smart H.264+, H.264, MJPEG (Sub Stream Only)
Streaming Capability2 Streams
Resolution4 MP (2688 x 1520), 3 MP (2304 x 1296), 1080p (1920 x 1080), 720p (1280 x 720), VGA (640 x 480), D1 (704 x 480), CIF (352 x 240)
Frame RateMain Stream: 4 MP at 20 fps or 3 MP at 30 fps
Sub Stream: D1 at 30 fps
Bit Rate ControlCBR, VBR
Day/NightAuto (IR Cut Filter), Color, B&W
BLC ModesBLC, HLC, True WDR (120 dB)
Gain ControlAuto, Manual
Noise Reduction3D-DNR
Motion DetectionOff, On (4 Rectangular Zones)
Region of InterestOff, On (4 Zones)
Smart IRAuto, Manual
Digital Zoom16x
Flip0°, 90°, 180°, 270°
MirrorOff, On
Privacy MaskingOff, On (4 Rectangular Areas)
Ethernet1 x RJ45 Port, 10/100 Mb/s
ProtocolsHTTP, HTTPs, TCP, ARP, RTSP, RTP, UDP, SMTP, FTP, DHCP, DNS, DDNS, PPPOE, IPv4/v6, QoS, UPnP, NTP, Bonjour, 802.1x, Multicast, ICMP, IGMP, SNMP
InteroperabilityONVIF Profiles S & G, API
Streaming MethodUnicast, Multicast
Max. User Access10/20 Users
Edge StorageNAS
Local PC for Instant Recording
Web ViewerInternet Explorer, Chrome, Firefox, Safari
Management SoftwareSmart PSS, DSS
Mobile Operating SystemsiOS, Android
Power Supply12 VDC, 0.5 A, or PoE (IEEE 802.3af, Class 0)
Maximum Power Consumption5.5 W
Safety CertificationUL60950-1
Electromagnetic CompatibilityFCC CFR 47 FCC Part 15 Subpart B
Operating/Storage Conditions-22 to 140°F / -30 to 60°C
<95% RH
Ingress ProtectionIP67
Dimensions (Ø x H)3.68 x 3.13″ / 93.4 x 79.4 mm
Weight0.66 lb / 0.3 kg