By Dahua

Dahua DH-IPC-HFW3849T1-ZAS-PV 8MP Smart Dual Light Active Deterrence Varifocal Bullet Camera

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SKU: DH-IPC-HFW3849T1-ZAS-PV
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  • 8MP Ultra HD (3840 × 2160) resolution captures four times more detail than 1080p.
  • Motorized varifocal lens (2.7–13.5mm) lets you remotely adjust zoom and focus for the perfect field of view.
  • Smart Dual Light with IR and white LEDs automatically switches between night vision and full-color mode.
  • Red and blue warning lights plus audible alarm actively deter intruders before a breach occurs.
  • Built-in dual mic and speaker enable real-time two-way audio communication.
  • 120dB True WDR delivers clear images even in strong backlight or high-contrast scenes.
  • IP67 weatherproof rating protects against rain, dust, and extreme temperatures.
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Dahua 8MP Smart Dual Light Active Deterrence Varifocal Bullet Camera

See Every Detail — Day and Night

This Dahua 8MP camera delivers 3840 × 2160 resolution at 30 fps, giving you four times the detail of standard 1080p. The motorized varifocal lens (2.7–13.5mm) lets you remotely adjust zoom and focus after installation, so you always get the exact field of view you need. With 120dB True WDR, it handles strong backlight and high-contrast scenes without washing out details.

Active Deterrence with Smart Dual Light

Smart Dual Light technology combines IR LEDs for standard night vision with white LEDs for full-color imaging when motion is detected. The camera also features red and blue warning lights and an audible alarm that activate automatically when a person or vehicle is detected. This active deterrence stops threats before they escalate, making it ideal for perimeter protection.

AI-Powered Detection That Works

WizSense SMD 4.0 uses deep learning to classify humans and vehicles with high accuracy, filtering out false alarms from animals, leaves, or rain. AcuPick enables fast and precise search of recorded events by person or vehicle. The built-in dual mic and speaker support real-time two-way audio, so you can warn visitors or scare off intruders instantly.

Built for Tough Outdoor Conditions

With an IP67 weatherproof rating, this camera survives rain, dust, and temperatures from –22°F to +140°F. It supports both 12V DC and PoE (802.3af) for flexible installation. The metal and plastic housing withstands physical impact, and the built-in microSD slot supports up to 256GB for local storage without an NVR.

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Specification

Camera

Image Sensor 1/2.8" CMOS
Max. Resolution 3840 (H) × 2160 (V)
ROM 128 MB
RAM 1 GB
Scanning System Progressive
Electronic Shutter Speed Auto/Manual 1/3 s–1/100,000 s
Min. Illumination 0.004 lux@F1.0 (Color, 30 IRE)
0.0004 lux@F1.0 (B/W, 30 IRE)
0 lux (illuminator on)
S/N Ratio ﹥56 dB
Illumination Distance Up to 50 m (164.04 ft) (IR)
Up to 40 m (131.23 ft) (warm light)
Illuminator On/Off Control Auto/Manual
Illuminator Number 2 (IR LED)
2 (warm light)
Angle Adjustment Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°

Lens

Lens Type Motorized vari-focal
Mount Type φ16
Focal Length 2.7 mm–13.5 mm
Max. Aperture F1.0
Field of View Horizontal: 108°–34°
Vertical: 56°–19°
Diagonal: 130°–39°
Iris Type Fixed
Close Focus Distance 1.5 m (4.92 ft)

DORI

W 89.9 m (294.95 ft)
T 257.4 m (844.49 ft)
IVS (Perimeter Protection) Tripwire; intrusion (support the classification and accurate detection of vehicle and human)
SMD 4.0 Less false alarm, longer detection distance
Quick Pick With AI NVR, quickly pick up the human/vehicle targets that users are interested in from SMD events
Smart Search Work together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos
AI SSA Adopt deep learning algorithms to adjust the parameters of the image to suit the conditions.

Video

Video Compression H.265; H.264; H.264H; H.264B; MJPEG (only supported by the sub stream)
Smart Codec Smart H.265+; Smart H.264+
AI Coding AI H.265; AI H.264
Video Frame Rate Main stream: 3840 × 2160@ (1–30 fps)
Sub stream: 704 × 576@ (1–25 fps)/704 × 480@ (1–30 fps)
Third stream: 1920 × 1080@ (1–30 fps)
\*The values above are the max. frame rates of each stream; for multiple streams, the values will be subjected to the total encoding capacity
Stream Capability 3 streams
Resolution 8M (3840 × 2160); 6M (3072 × 2048); 5M (3072 × 1728/2592 × 1944); 4M (2688 × 1520); 3M (2048 × 1536/2304 × 1296); 1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240)
Bit Rate Control CBR/VBR
Video Bit Rate H.264: 3 kbps–8192 kbps
H.265: 3 kbps–8192 kbps
Day/Night Auto (ICR)/Color/B/W
BLC Yes
HLC Yes
WDR 120 dB
Scene Self-adaptation Yes
White Balance Auto; natural; street lamp; outdoor; manual; regional custom
Gain Control Auto; manual
Noise Reduction 3D NR
Motion Detection OFF/ON (4 areas)
Region of Interest (RoI) Yes (4 areas)
Image Stabilization Electronic Image Stabilization (EIS)
Smart Illumination Yes
Defog Yes
Image Rotation 0°/90°/180°/270° (Support 90°/270° with 2688 × 1520 resolution and lower)
Mirror Yes
Privacy Masking 4 areas

Audio

Built-in Mic Yes, built-in dual Mic
Built-in speaker Yes, built-in speaker
Audio Compression Audio Compression PCM; G.711a; G.711Mu; G.726; G.723

Alarm

Alarm Event No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; scene changing; audio detection; voltage detection; defocus detection; external alarm; SMD; security exception

Network

Network RJ-45 (10/100 Base-T)
SDK and API Yes
Cyber Security Video encryption; firmware encryption; configuration encryption; Digest; WSSE; account lockout; security logs; IP/MAC filtering; generation and importing of X.509 certification; syslog; HTTPS; 802.1x; trusted boot; trusted execution; trusted upgrade
Protocol IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP ; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; SNMP
Interoperability ONVIF (Profile S; Profile G; Profile T); CGI
User/Host 20 (Total bandwidth: 72 M)
Storage FTP; SFTP; Micro SD card (support max. 256 G); NAS
Browser IE: IE8/9/11
Chrome
Firefox
Management Software SmartPSS Lite; DSS; DMSS
Mobile Phone iOS; Android

Certification

Certification CE-LVD: EN 62368-1;
CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU;
FCC: 47 CFR FCC Part 15, Subpart B;
UL/CUL:UL62368-1 & CAN/CSA C22.2 No. 62368-1-14

Port

Audio Input 1 channel (RCA port)
Audio Output 1 channel (RCA port)
Alarm Input 1 channel in: wet contact, 5 mA 3 V–5 VDC
Alarm Output 1 channel out: wet contact, 300 mA 12 VDC

Power

Power Supply 12V DC/PoE (802.3af)
Power Consumption Basic: 4.3 W (12 VDC); 5.5 W (PoE)
Max. (H.265+main stream/IR intensity+warm light on): 7.9 W (12 VDC); 9.8 W (PoE)

Environment

Operating Conditions –30 °C to +60 °C (–22 °F to +140 °F)/Less than 95% RH
Storage Conditions –40 °C to +60 °C (–40 °F to +140 °F)
Protection Grade IP67

Structure

Casing Metal + plastic
Dimensions 288.4 mm × 94.4 mm × 84.7 mm
(11.35" × 3.72" × 3.33") (L × W × H)
Net Weight 1.05 kg (2.31 lb)
Gross Weight 1.35 kg (2.98 lb)

FAQ

Does this camera support two-way audio?

Yes, it has a built-in dual mic and speaker for real-time two-way communication. You can talk to visitors or warn intruders directly from the DMSS app.
Can I adjust the zoom after installation?

Yes, the motorized varifocal lens (2.7–13.5mm) allows remote zoom and focus adjustment. You can change the field of view without climbing a ladder.
What is Smart Dual Light and how does it work?

Smart Dual Light combines IR LEDs for standard night vision with white LEDs for full-color imaging. It automatically switches between three illumination modes based on motion detection and ambient light.
Does this camera work with third-party NVRs?

Yes, it supports ONVIF (Profile S/G/T) for compatibility with most major NVR brands. It also works natively with Dahua NVRs and the DMSS app.