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Description
Dahua IPC-MFW7842K1-Z4-T20 8+2MP Dual-Sight Bullet Camera, 8-32mm F1.6 Zoom + 3.6mm F1.0, Smart Dual Light, 120dB WDR, Built-in Mic & SpeakerDahua IPC MFW7842K1 Z4 T20 8+2MP Dual Sight Bullet WizMind Network Camera 832mm 4K Zoom + 3. 6mm Panoramic DualLens, DualChannel 8MP 4K Detail Zoom + 2MP Wide Panoramic Channel 1 (4K Detail Zoom 8MP): 1 1. 7" CMOS, 832mm F1. 6 motorized 4x zoom. Smart dual light: IR up to 100m (328 ft) + warm light up to 60m. Detection range up to 590m (1,936 ft). Channel 2 (Panoramic 2MP): 1 2. 7" CMOS, 3. 6mm F1. 0 fixed lens with 81 horizontal FOV. Warm light up to
Dahua IPC-MFW7842K1-Z4-T20 8+2MP Dual-Sight Bullet WizMind Network Camera – 8‑32mm 4K Zoom + 3.6mm Panoramic
Dual‑Lens, Dual‑Channel – 8MP 4K Detail Zoom + 2MP Wide Panoramic
- Channel 1 (4K Detail Zoom – 8MP): 1/1.7" CMOS, 8‑32mm F1.6 motorized 4x zoom. Smart dual light: IR up to 100m (328 ft) + warm light up to 60m. Detection range up to 590m (1,936 ft).
- Channel 2 (Panoramic – 2MP): 1/2.7" CMOS, 3.6mm F1.0 fixed lens with 81° horizontal FOV. Warm light up to 20m (65 ft).
- Smart Dual Light (IR + Warm LED): 3 illumination modes (IR only, warm light only, mixed) to minimize glare and adapt to different scenes.
- Built-in Dual Mic & Speaker: Secure two‑way talk and instant sound + light alerts to deter intruders and reduce incidents.
- 5 AI Functions (Channel 1): Perimeter protection, face recognition (up to 25,000 faces), face detection, people counting, and video metadata.
- Rich Interfaces: 3 alarm inputs / 2 outputs, 2 audio inputs / 1 output, RS-485, BNC analog output, microSD up to 256GB.
- Rugged Design: IP67 weatherproof, operating temperature -30°C to +60°C (–22°F to +140°F), metal+plastic casing.
Camera Specification
| Image Sensor | Channel 1 (Detail): 1/1.7" CMOS Channel 2 (Panoramic): 1/2.7" CMOS |
|---|---|
| Max. Resolution | Ch1: 3840 × 2160 (8MP 4K) Ch2: 1920 × 1080 (2MP 1080p) |
| ROM / RAM | Not specified (standard WizMind architecture) |
| Scanning System | Progressive |
| Electronic Shutter Speed | Auto/Manual 1/3 s–1/100,000 s |
| Min. Illumination |
Ch1: 0.002 lux @ F1.6 (Color); 0.00035 lux (B/W); 0 lux (illuminator on) Ch2: 0.002 lux @ F1.0 (Color); 0 lux (illuminator on) |
| S/N Ratio | >56 dB |
| Illumination Distance / Type |
Ch1: IR up to 100 m, warm light up to 60 m (2 IR LEDs + 4 mixed IR+warm LEDs) Ch2: warm light up to 20 m (2 warm LEDs) 3 illumination modes supported |
Lens & DORI Optics
| Lens Type / Mount | Ch1: Motorized vari-focal (Module mount) Ch2: Fixed-focal (M12 mount) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Focal Length / Aperture | Ch1: 8 mm–32 mm (4x zoom) | F1.6 Ch2: 3.6 mm | F1.0 |
||||||||||||||||||||
| Field of View |
Ch1: H: 43°–15°, V: 23°–8°, D: 50°–17° Ch2: H: 81°, V: 43°, D: 95° |
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| Close Focus Distance | Ch1: W: 1 m, T: 1.5 m (4.92 ft) Ch2: 2 m (6.56 ft) |
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| DORI Distance |
*DORI standard (EN-62676-4). For intelligent function distances, refer to project design tool.
|
Elite Intelligence (WizMind)
| AI Functions (Channel 1) | Perimeter protection, face recognition, face detection, people counting, video metadata. (Channel 2 supports limited AI; refer to manual) |
|---|---|
| IVS Perimeter Protection | Intrusion, tripwire, fast moving (human/vehicle classification), loitering, gathering, parking detection, abandoned/missing object. |
| Face Recognition | 6 attributes (gender, age, glasses, expressions, face mask, beard) + 8 expressions. Supports 5 face databases, up to 25,000 faces. |
| People Counting | Tripwire counting, area counting, queue management, report export (day/month/year). 4 rules configurable. |
| Video Metadata | Motor vehicle attributes (license plate, type, color, logo, seatbelt, smoking, calling), non-motor vehicle attributes, human body attributes, face attributes. |
| Smart Search | Works with Smart NVR for refined intelligent search and event extraction. |
Video & Audio Specifications
| Video Compression / Smart Codec | H.265; H.264; H.264H; H.264B; MJPEG (sub stream) | Smart H.265+ / Smart H.264+ |
|---|---|
| Stream Capability | 3 streams per channel (main, sub, third) |
| Resolution (per channel) |
Ch1: 8M (3840×2160), 6M, 5M, 4M, 3M, 1080p, 1280×960, 1280×720 Ch2: 1080p (1920×1080), 1280×720, 704×576, 640×480, 352×288 |
| Video Frame Rate |
Ch1: Main 3840×2160 @ 25/30 fps; Sub 704×576/480 @ 25/30 fps; Third 1920×1080 @ 25/30 fps Ch2: Main 1920×1080 @ 25/30 fps; Sub 704×576/480 @ 25/30 fps; Third 1920×1080 @ 25/30 fps |
| Bit Rate Control / Range | CBR/VBR | H.264/H.265: 32–8192 kbps |
| WDR & Image Enhancements | 120 dB WDR; BLC; HLC; 3D NR; ROI (4 areas); Defog; EIS; Image Rotation; Privacy Masking (8 areas) |
| Audio Features |
Built-in Dual Mic + Built-in Speaker (sound/light alerts) Audio Compression: PCM; G.711A; G.711Mu; G.726; MPEG2-Layer2; G.722.1; G.729; G.723 External: 2-ch RCA input, 1-ch RCA output |
Network, Storage & Cybersecurity
| Network Port | RJ-45 (10/100/1000 Base-T) Gigabit Ethernet |
|---|---|
| Network Protocols | IPv4; IPv6; HTTP; HTTPS; TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; SAMBA; PPPoE; 802.1x; SNMP; Bonjour |
| Interoperability / Browser | ONVIF (Profile S/G/T); CGI | IE9+, Chrome 86+ (with/without plug-in), Firefox 86+ |
| Local Storage | Micro SD card (max. 256 GB); FTP; SFTP; NAS |
| Cybersecurity | Configuration encryption; trusted execution; Digest; security logs; WSSE; account lockout; syslog; video encryption; 802.1x; IP/MAC filtering; HTTPS; trusted upgrade/boot; firmware encryption; X.509 certification. |
| Management Software | DSS Pro; DMSS | iOS & Android |
Physical I/O Interfaces
| RS-485 | 1 port (1200–115200 bps) |
|---|---|
| Audio I/O | 2-ch RCA input, 1-ch RCA output (in addition to built-in mic & speaker) |
| Alarm I/O | 3 alarm inputs (5 mA 3–5 VDC) 2 alarm outputs (300 mA 12 VDC) |
| Analog Output | 1 channel CVBS (BNC) |
| Power Output | Not specified |
| Alarm Events | Extensive: No SD card, network/IP issues, motion, tampering, tripwire, intrusion, fast moving, abandoned/missing object, loitering, parking, scene changing, audio detection, defocus, face detection/recognition, video metadata, people counting, license plate recognition, etc. |
Power, Climate & Protection
| Power Supply | 12 VDC; PoE (802.3af/at assumed) |
|---|---|
| Power Consumption | Basic: 5.5 W (12 VDC), 6.4 W (PoE) Max (ICR + zoom + IR full): 19.2 W (12 VDC), 24.6 W (PoE) |
| Operating Temperature / Humidity | –30 °C to +60 °C (–22 °F to +140 °F) | ≤95% RH (non-condensing) |
| Storage Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
| Protection Rating | IP67 weatherproof |
Physical Structure
| Casing Material | Metal + plastic |
|---|---|
| Product Dimensions | 283.1 mm × 123.2 mm × 109.5 mm (11.14" × 4.85" × 4.31") (L×W×H) |
| Net Weight / Gross Weight | 1,905 g (4.20 lb) / 2,185 g (4.82 lb) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Good buy, great fit!
Size: 12, Color: White
Very satisfied with the fit, style, and quality of these shoes. Usually scared to buy shoes online due to the sizing issues or difficulty. These were no sweat. Good delivery as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
★★★★★ 5
Buy them!
Size: 8.5, Color: Black
Great fit, very comfortable and they look great. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 3
Doesn't really slip on too well.
Size: 11, Color: White, Size: 11, Color: White
Doesn't really slip on too well. Also, since the heel is ridged it unintentionally allows my heel to slip out while walking.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
Really like these for casual summer outfits
Size: 10.5, Color: White
These are really nice kicks. Stylish, comfortable, and eye catchy for sure. Not too heavy, good price, and fit well. These are great, casual white shoes for a summer outfit.
I gave it 4 out of 5 stars as these do pick up and hold onto dirt and smudges more than I’d like to see. Yes, I know, white shoes are magnets for this stuff, but these tend to scuff and discolor more than I would have assumed. I live in an area with lots of bad weather most of the year so I only get a chance to wear them for a few months of the year unless I want to brave the wet and muddy weather. If you live in an area that has lots of sun and are willing to put these to the test and clean them often, I would say go for it.
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Terrific shoes
Size: 8.5, Color: Cognac
Fit is perfect. Looks great. Comfort is terrific. Wood buy them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2025
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