By Dahua

Dahua DH-IPC-HFW2441T-ZS 4MP WizSense Varifocal Bullet Camera with Audio

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SKU: DH-IPC-HFW2441T-ZS
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  • Sharp 4MP Super HD — 2688 × 1520 resolution for crisp day and night footage
  • Motorized varifocal lens (2.7–13.5mm) — remotely adjust zoom and focus after installation
  • Deep learning-based human and vehicle classification — reduces false alarms from leaves, rain, or animals
  • Built-in microphone — hear what's happening in real time without extra hardware
  • 120dB True WDR — clear images even against strong backlight or direct sunlight
  • IP67 weatherproof and IK10 vandal-resistant metal housing — survives rain, dust, and impacts
  • Supports up to 256GB MicroSD card for weeks of local edge storage

4MP WizSense Varifocal Bullet Camera with Built-in Mic

DH-IPC-HFW2441T-ZS details_h2_image1
DH-IPC-HFW2441T-ZS 1_1

Crisp Imaging in Any Light

This 4MP WizSense bullet camera delivers 2688 × 1520 resolution with 120dB True WDR. You get clear, usable footage even when the scene has bright sunlight and deep shadows. The motorized varifocal lens (2.7–13.5mm) lets you remotely adjust the field of view from 104° wide to 29° narrow — perfect for dialing in the exact coverage after the camera is mounted.

DH-IPC-HFW2441T-ZS 2_2

Smart Alerts That Actually Matter

Built-in deep learning classifies humans and vehicles separately. The camera only sends alerts when a person or car enters the zone — not when a tree branch moves or a stray cat walks by. This cuts nuisance alarms and saves you time reviewing footage. The built-in microphone adds real-time audio monitoring so you can hear what's happening alongside the video.

DH-IPC-HFW2441T-ZS 3_3

Install Once, Adjust Remotely

The motorized varifocal lens eliminates the need to climb a ladder to reframe the shot. After installation, you can zoom and focus remotely from the NVR or mobile app. Power via 12V DC or PoE (802.3af) — one cable carries both data and power. The metal housing is rated IP67 for outdoor use and IK10 for vandal resistance.

DH-IPC-HFW2441T-ZS 4_4

Reliable Local Storage and Compression

Record weeks of footage directly to a MicroSD card (up to 256GB) without a separate NVR. Efficient H.265+ compression cuts bandwidth and storage usage by up to 70% compared to H.264, so you keep more recordings without buying extra hard drives. ONVIF support ensures compatibility with most third-party recorders and VMS platforms.

Specification

Camera

Image Sensor 1/2.9" CMOS
Max. Resolution 2688 (H) × 1520 (V)
ROM 128 MB
RAM 128 MB
Scanning System Progressive
Electronic Shutter Speed Auto/Manual 1/3 s–1/100,000 s
Min. Illumination 0.006 lux@F1.5 (Color, 30 IRE)
0.0006 lux@F1.5 (B/W, 30 IRE)
0 lux (Illuminator on)
S/N Ratio >56 dB
Illumination Distance Up to 60 m (196.85 ft) (IR LED)
Illuminator On/Off Control Auto; Manual
Illuminator Number 4 (IR LED)
Pan/Tilt/Rotation Range Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°

Lens

Lens Type Motorized vari-focal
Lens Mount φ14
Focal Length 2.7 mm–13.5 mm
Max. Aperture F1.5
Field of View H: 104°–29°;
V: 54°–16°;
D: 125°–34°
Iris Control Fixed
Close Focus Distance 0.8 m (2.62 ft)

DORI

W 64.0 m (209.97 ft)
T 210.0 m (688.97 ft)

Intelligence

IVS (Perimeter Protection) Intrusion, tripwire (the two functions support the classification and accurate detection of vehicle and human)
Smart Search Work together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos

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+
Video Frame Rate Main stream: 2688 × 1520@(1–20 fps)/2560 × 1440@(1-25/30 fps)
Sub stream: 704 × 576@(1–25 fps)/704 × 480@(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 2 streams
Resolution 2688 × 1520 (2688 × 1520); 2560 × 1440 (2560 × 1440); 2304 × 1296 (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: 32 kbps–6144 kbps;
H.265: 12 kbps–6144 kbps
Day/Night Auto(ICR)/Color/B/W
BLC Yes
HLC Yes
WDR 120 dB
White Balance Auto; natural; street lamp; outdoor; manual; regional custom
Gain Control Manual;Auto
Noise Reduction 3D NR
Motion Detection OFF/ON (4 areas, rectangular)
Region of Interest (RoI) Yes (4 areas)
Smart Illumination 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
Audio Compression G.711a; G.711Mu; G.726; PCM

Alarm

Alarm Event No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio detection; voltage detection; defocus detection; external alarm (Only - ZAS supports); SMD; security exception

Network

Network Port RJ-45 (10/100 Base-T)
SDK and API Yes
Network Protocol IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; NTP; Multicast; ICMP; IGMP; P2P
Interoperability ONVIF (Profile S/Profile G/Profile T); CGI
User/Host 6 (Total bandwidth: 36 M)
Storage FTP; SFTP; Micro SD card (support max. 256 GB)
Browser IE
Chrome
Firefox
Management Software SmartPSS Lite; DSS; DMSS
Mobile Client iOS; Android
Cyber Security Video 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

Certification

Certifications CE-LVD: EN62368-1;
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) (Only - ZAS supports)
Audio Output 1 channel (RCA port) (Only - ZAS supports)
Alarm Input 1 channel in: 5mA 3V–5V DC (Only - ZAS supports)
Alarm Output 1 channel out: 300mA 12V DC (Only - ZAS supports)

Power

Power Supply 12 VDC/PoE (802.3af)
Power Consumption -ZS:
Basic: 2.4 W (12 VDC); 3.1 W (PoE)
Max. (H.265+intelligence on +WDR +IR on): 8.7 W (12 VDC); 10.1 W (PoE)
-ZAS:
Basic: 2.4 W (12 VDC); 3.1 W (PoE)
Max. (H.265+intelligence on +WDR +IR on): 8.8 W (12 VDC); 10.2 W (PoE)

Environment

Operating Temperature –30 °C to +60 °C (–22 °F to +140 °F)
Operating Humidity ≤95%
Storage Temperature –40 °C to +60 °C (–40°F to +140°F)
Protection IP67, IK10 (optional)

Structure

Casing Material Metal
Product Dimensions 238.5 mm × 90.7 mm × 90.7 mm (9.39" × 3.57" × 3.57") (L × W × H)
Net Weight -ZS: 0.73 kg (1.6 lb)
-ZAS: 0.76 kg (1.7 lb)
Gross Weight -ZS: 0.99 kg (2.2 lb)
-ZAS: 1.02 kg (2.2 lb)

FAQ

Is this camera good for outdoor night surveillance?

Yes. It has 60m smart IR range and 0.006 lux color sensitivity, so it captures clear black-and-white or color footage in total darkness. The IP67 rating protects against rain, dust, and snow.

Can I adjust the zoom after the camera is mounted?

Absolutely. The motorized varifocal lens lets you remotely adjust zoom and focus from 2.7mm (wide) to 13.5mm (telephoto) using the NVR or mobile app — no ladder needed.

Does this camera have a built-in microphone?

Yes. It has a built-in mic for real-time audio monitoring. You can hear conversations, alarms, or ambient sounds directly through the NVR or compatible software.

What kind of power does it need?

It supports both 12V DC and PoE (802.3af). With PoE, a single Ethernet cable delivers power and data — ideal for clean, simple installations.