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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 |
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| 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
4.4 ★★★★★
Based on 2368 reviews
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Product Reviews
★★★★★ 5
This Pillow Is A Must Buy!! What Are You Waiting For?
Size: Queen (Pack of 1)
This is, without a doubt, the best pillow I have ever owned. One of my favorite features is the adjustable shredded memory foam fill, which allows you to customize the loft and firmness by adding or removing foam to suit your sleeping preferences. As both a side and back sleeper, I found it incredibly comfortable and supportive.
The overall quality is excellent, from the materials used in the pillow itself to the thoughtful packaging. The removable cover is washable, although I personally use a pillowcase to keep it protected. I also appreciated that extra foam is included, making it easy to fine-tune the pillow over time.
The difference in my sleep quality was noticeable from the very first night. I’ve been sleeping more comfortably and waking up feeling more rested ever since I started using it. Considering the quality, comfort, and customization options, I believe the $75 price point is well worth it. I am so impressed with this pillow that I plan to purchase another one in the future.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
This is a high-quality, well-designed pillow that combines softness, comfort, and adjustability
Size: Queen (Pack of 1), Size: Queen (Pack of 1)
I purchased the DreamyBlue Signature Adjustable Pillow for my husband because he often experiences back discomfort, and many of the pillows we had previously would become flat and lose their support over time.
This pillow has exceeded our expectations. It is incredibly soft, comfortable, and comes with extra filling, which allows you to adjust the firmness to your personal preference. We really appreciated having that option.
Even after extended use, the pillow has maintained its shape much better than other pillows we've owned. It provides a plush, cozy feel while still offering good support. My husband finds it very comfortable, and it has quickly become his favorite pillow.
This is a high-quality, well-designed pillow that combines softness, comfort, and adjustability. I would definitely recommend it.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Finally Found a Pillow Worth Keeping
Size: Queen (Pack of 1)
I genuinely feel like I’ve tried every pillow on the market. At one point, I thought Amazon was going to flag my account because I bought and returned so many pillows trying to find the right one.
This is the only pillow that made the cut.
The shredded memory foam filling makes a huge difference because the pillow is both soft and supportive, while still being adjustable to fit the way you sleep. It arrives extremely full and plush, and it even comes with an extra bag of fill, which honestly surprised me. I ended up removing about half of the filling to get it exactly how I wanted it.
I’m a side/stomach sleeper, which can make finding a good pillow difficult since most are either too thick or too flat. This one was perfect because I could shape it exactly how I sleep.
It stays cool throughout the night, has a slightly heavier premium feel, and feels much higher quality than most pillows I’ve tried. Super comfortable, supportive, and customizable.
I would absolutely recommend it and would definitely buy it again
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Reviewed in the United States on May 24, 2026
★★★★★ 4
A bit expensive
Size: Queen (Pack of 1)
Waited to give a review on this one because I needed several nights before I had any idea if it was as good as everyone says.
I've had a real problem finding pillows lately. Either they're too soft to provide support and I wake up with a stiff neck or they're too sturdy and I wake up with a stiff neck. Contour pillows have worked best for me, but they fall under the category of too sturdy. I also toss and turn too much at night, which means I always end up in an awkward position with contour pillows.
So I took a chance on an obscenely expensive pillow, and yes, that is the reason for one less star. I'd happily pay $70 for a pillow I thought was amazing and comfortable and perfect, but this one wasn't quite it. It IS comfortable. I have slept on it for a month now without it making my neck stiff, so it does actually provide a good balance between soft and sturdy. They make it easy to stuff the pillow to your preferred fluffiness and even provide extra stuffing if you need it, which adds to the degree of comfort.
While the pillow does provide good neck support, I toss and turn a bit trying to find a comfortable position when I first try to sleep. The stuffing within the pillow moves around at night, most notably shifting to the side and the pillow is notably flatter now than when I first purchased it. You can fluff it out, similarly to a down pillow, but it doesn't seem to retain its shape on its own. In some ways, that's good because what it does instead is try to retain a shape that fits you.
So yes, this is a really good pillow. One of the better ones you can buy. But it's really expensive for a pillow.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Best pillow I've ever had
Size: Queen (Pack of 1)
I don't really write reviews but holy buckets, Batman. This pillow is legit. Back, neck, and shoulder pain is nothing new for me; I've had scoliosis since I was a kid and hyperflexibility in my neck since birth leading to frequent muscle spasms that have caused me to miss work.
Guys. This pillow. It is the most comfortable pillow I've ever had. Like, my neck doesn't hurt and I genuinely didn't remember what that felt like. It's simultaneously supportive and soft and it doesn't sink in. The instructions are super clear to understand and the pillow fluffs up no problem if it gets a little flat. This is a game changer for me and I so hope anyone who buys this has the same experience.
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Reviewed in the United States on June 6, 2026