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Description
Dahua SD7A840FA-HNF-ATC 8MP 40X IR High-Speed Network PTZ CameraDahua SD7A840FA HNF ATC 8MP 40x IR High Speed PTZ Camera 4K @60fps, 700 s Pan, 4,400m DORI, NEMA 4X Key Performance Highlights 8MP 4K Ultra High Speed PTZ + 60fps + 140dB WDR 8MP 4K Resolution & 40 Optical Zoom: 5. 5220 mm motorized zoom lens (F1. 6F4. 9) exceptional detail from wide to ultra tele. Extreme High Speed PTZ: Pan speed up to 700 s, tilt up to 300 s; preset speed 550 s (pan). Smart pan tilt correction with 0. 05 positioning accuracy. High
Dahua SD7A840FA-HNF-ATC 8MP 40x IR High-Speed PTZ Camera – 4K @60fps, 700°/s Pan, 4,400m DORI, NEMA 4X
Key Performance Highlights – 8MP 4K Ultra-High-Speed PTZ + 60fps + 140dB WDR
- 8MP 4K Resolution & 40× Optical Zoom: 5.5–220 mm motorized zoom lens (F1.6–F4.9) – exceptional detail from wide to ultra-tele.
- Extreme High-Speed PTZ: Pan speed up to 700°/s, tilt up to 300°/s; preset speed 550°/s (pan). Smart pan-tilt correction with 0.05° positioning accuracy.
- High Frame Rate Flexibility: 8MP/4MP/3MP @ 50/60 fps or 1080p/720p @ 100/120 fps – ultra-smooth 4K video for fast-moving targets.
- 140dB True WDR & Gyro EIS: Excellent wide dynamic range plus built‑in gyroscope electronic image stabilization for stable video under vibration.
- 300m IR Illumination: 6 high-power IR LEDs provide long‑range night visibility up to 984 feet.
- Privacy Protection with Mosaic: Auto-masks detected faces or human bodies in real time – ideal for public or regulated environments.
- Advanced Xinghan AI: Video metadata (10 vehicle/8 non-motor/6 face/8 body), face recognition (10,000 faces, 5 databases), IVS perimeter protection, AcuPick, WizTracking.
- Rugged & Anti-Corrosion: IP67/IK10, NEMA 4X (optional), moderate anti-corrosion coating (coastal areas >2km, acid rain). Operates –40°C to +70°C, TVS 6000V surge protection.
- Extreme DORI Distance: Tele end detect range up to 4,400 m (14,435 ft) – industry‑leading long-range identification.
Camera Specification – 8MP 4K High-Speed PTZ
| Image Sensor | 1/1.8" CMOS |
|---|---|
| Max. Resolution | 8MP – 3840 (H) × 2160 (V) – 4K Ultra-HD |
| ROM / RAM | 8 GB / 4 GB |
| Electronic Shutter Speed | 1/1 s – 1/30,000 s |
| Scanning System | Progressive |
| Min. Illumination | Color: 0.001 [email protected]; B/W: 0.0001 [email protected]; 0 lux (IR on) |
| Illumination Distance & Type | IR 300 m (984.25 ft) – 6 IR LEDs |
| Illuminator Control | Zoom Prio; Manual; Auto; Off |
Lens & DORI Optics (40× Optical Zoom)
| Focal Length / Aperture | 5.5 mm – 220 mm (40× zoom) | F1.6–F4.9 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Field of View | H: 60.82°–2.26°; V: 36.24°–1.26°; D: 68.7°–2.59° | |||||||||||||||
| Focus Control / Iris Control | Auto; Semi-auto; Manual | Auto/Manual/Iris Priority | |||||||||||||||
| Close Focus Distance | 0.5 m – 5 m (1.64 ft – 16.40 ft) | |||||||||||||||
| DORI Distance (EN-62676-4) |
|
Elite Intelligence – Xinghan AI with Privacy Protection
| Video Metadata | Motor vehicle (10 attributes), non-motor vehicle (8 attributes), face (6 attributes), human body (8 attributes). Supports snapshot optimization and high-quality face upload. |
|---|---|
| IVS Perimeter Protection | Tripwire, intrusion, crossing fence, loitering, abandoned/missing object, fast moving, parking detection, people gathering, human/vehicle classification, linkage tracking, privacy protection. |
| Face Recognition | 5 face databases (up to 10,000 faces), 6 attributes + 8 expressions, face cutout as one‑inch photo, batch import, similarity threshold, privacy protection. |
| Smart Tracking / AcuPick | WizTracking; AcuPick for fast human/vehicle search through live/recorded video. |
| Privacy Protection | Real-time mosaic masking – automatically covers detected faces or body parts in public scenes. |
Video & Audio Specifications – 4K @60fps, 140dB WDR
| Compression / Smart Codec | Smart H.265+; H.265; Smart H.264+; H.264; H.264B; H.264H; MJPEG (sub stream 1 only) |
|---|---|
| Streaming Capability | 3 streams |
| Resolution Options | 8M (3840×2160), 4M (2560×1440), 3M, 1080p, 1.3M, 720p, D1, VGA, CIF |
| Video Frame Rate |
Main stream: 8M/4M/3M @ 1–50/60 fps; 1080p/1.3M/720p @ 1–100/120 fps Sub stream 1: D1/VGA/CIF @ 1–25/30 fps Sub stream 2: 1080p/1.3M/720p/CIF @ 1–25/30 fps *High frame rate supported under monitoring mode only. |
| Bit Rate Control / Bit Rate | VBR/CBR. H.264: 128–16384 kbps; H.265: 51–11776 kbps |
| WDR / Image Enhancements | 140 dB True WDR, BLC, HLC, 2D/3D NR, ROI, Gyroscope EIS, Digital Zoom (16×), Image Rotation 180° |
| Privacy Masking | Up to 24 areas (max 8 in same view), selectable color block or mosaic |
| Audio Compression | PCM; G.711a; G.711Mu; G.726; MPEG2-Layer2; G722.1; G729; G723 |
PTZ & Mechanical Specifications – 700°/s High Speed
| Pan/Tilt Range | Pan: 0°–360° endless, smart pan-tilt correction; Tilt: –20°–+90°, auto flip 180°, smart pan-tilt correction (0.05° accuracy) |
|---|---|
| Manual Control Speed | Pan: 0.1–700°/s; Tilt: 0.1–300°/s |
| Preset Speed | Pan: 550°/s; Tilt: 300°/s |
| Preset / Tour / Pattern / Scan | 300 presets, 8 tours (32 presets each), 5 patterns, 5 scans |
| Idle Motion / Power-off Memory | Preset/Pattern/Tour/Scan; Yes |
| PTZ Protocol | DH-SD; Pelco-P/D (auto recognition) |
Network, Storage & Cybersecurity
| Network Port | RJ-45 (10/100/1000 Base-T – Gigabit) |
|---|---|
| Network Protocols | HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UDP; SMTP; NTP; DHCP; DNS; DDNS; 802.1x; SSL; QoS; FTP; UPnP; SNMP; PPPoE; RTMP; Bonjour; NFS |
| Interoperability | ONVIF (Profile S/G/T/M); CGI; SDK |
| Local Storage | Micro SD card (max 1 TB); FTP; NAS |
| User/Host / Bandwidth | 20 users (total bandwidth 64 Mbps) |
| Cybersecurity | WSSE, account lockout, HTTPS, IP/MAC filtering, security logs, trusted upgrade/boot |
| Management Software / Browser | DMSS; NVR; DSS Pro; IE9+, Chrome 41+, Firefox 50+, Safari 10+ |
I/O Interfaces & Alarm (7 Inputs / 2 Outputs)
| Analog Output | 1 channel CVBS (BNC) |
|---|---|
| RS-485 | 1 (baud rate 1200–9600 bps) |
| Audio I/O | 1 channel LINE IN + 1 channel LINE OUT (bare wire) |
| Alarm Input / Output | 7 inputs (digital, 0–5 VDC) + 2 outputs |
| Alarm Linkage | Snapshot, preset, tour, pattern, recording, alarm output, email, audio |
| Alarm Event | Motion detection, video tampering, audio detection, network/IP conflict, SD card status, storage space |
| Power Supply | 36 VDC; 2.23 A (±25%) OR PoE (802.3bt) |
|---|---|
| Power Consumption | Basic: 22 W; Max (illuminator + PTZ + heater on): 33 W |
| Power Output | Yes |
| Operating Temperature / Humidity | –40 °C to +70 °C (–40 °F to +158 °F) | ≤95% RH |
| Protection Ratings | IP67, IK10, NEMA 4X (optional), TVS 6000V lightning/surge/voltage transient protection |
| Anti-corrosion Level | Moderate Protection – high-grade anti-corrosion coating; suitable for coastal areas >2 km and acid rain environments |
| Certifications | CE: EN55035, EN IEC61000-3-2, EN55032, EN60950, EN62368-1 |
Physical Structure
| Casing Material | Metal + plastic |
|---|---|
| Product Dimensions | 221.66 mm × 218.42 mm × 320.8 mm (8.73" × 8.60" × 12.63") (L×W×H) |
| Net Weight / Gross Weight | 4.96 kg (10.93 lb) / 8.21 kg (18.10 lb) |
| Power Adapter | Included |
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
4.7 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Stylish glasses that are polarized too!
Color: Matte Black/Black Polarizedarized, Polarization Type: Polarized, Lens Width: 50 Millimeters
These sunglasses fit so good on, nice and snug without being too tight, and they’re lightweight. Super comfortable for all day wear
Really like the polarized lenses too
These sunglasses kinda remind me of my Ray-bans, but these are a bit more stylish.
They’re durable feeling too and come tucked into a cloth type pouch
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Reviewed in the United States on November 24, 2025
★★★★★ 5
stylish and modern look that pairs well with a variety of outfits
Color: Matte Black/Black Polarizedarized, Polarization Type: Polarized, Lens Width: 50 Millimeters
The Quay Weekender Round Sunglasses offer a stylish and modern look that pairs well with a variety of outfits. The round frame design gives them a classic yet trendy vibe, making them suitable for both casual and more dressed-up occasions. The lenses provide clear vision and a comfortable level of tint, helping to reduce glare in bright conditions while maintaining a crisp view of your surroundings.
The build quality feels solid, with sturdy frames that are lightweight enough for extended wear without discomfort. The nose pads and overall fit make them easy to keep in place throughout the day, whether walking around the city, driving, or relaxing outdoors.
These sunglasses are versatile and fashionable, making them a great accessory for everyday wear or special outings. Overall, the Quay Weekender Round Sunglasses combine style, comfort, and durability, making them a reliable choice for anyone looking to add a chic and functional pair of shades to their collection.
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Reviewed in the United States on September 27, 2025
★★★★★ 4
Pricey, but Now I Get It
Color: Matte Black/Black Polarizedarized, Polarization Type: Polarized, Lens Width: 50 Millimeters
So I’m not the kind of guy who’s going to spend hundreds of dollars on a pair of shades just because they say Oakley or Ray-Ban or whatever. If that’s you, that’s cool—I’m not judging. I just can’t justify it. But when the opportunity to check these out came along, well, of course I had to try them. And let me tell you, now I at least get it.
The quality of these sunglasses is so much better than I would have expected—and frankly, way better than anything I’ve ever owned—that I could probably stomach the price if I had to buy new ones. The frames feel both heavy-duty and lightweight at the same time. The lenses are absolutely spectacular. I’ve had other polarized glasses, and they’re good, but these are on another level. The clarity, protection, and color are all top-notch.
The style, for me, is a little more miss than hit, but they look a lot better on my wife, so it’s a win for her. I’m a big guy with a big melon, so while these are great-looking sunglasses, they’re a bit small for my face. If I was going for a certain look, they might have done the trick, but this is all subjective anyway. If you love the way these look online, you’ll love the way they look in person.
Even if the style didn’t quite suit me, I’d say my only actual complaint about the glasses is that they have very flat frames. If you don’t have a perfectly straight nose or face, they may feel a bit crooked when you’re wearing them. And since there’s no way to adjust them, there’s no way to fix that. Fortunately, not only do these fit and look better on my wife, but this wasn’t an issue for her, and I suspect it won’t be for most people. However, if you’re the type who typically has to adjust the nose pads on your glasses, these might not work for you.
Overall, the design and quality of these sunglasses are so good that even though they didn’t really work for me, there’s simply no way I can’t recommend them. The price is higher than I’d usually consider, and for the cost I do wish they came with a hard case instead of just a sleeve. But that’s a minor nitpick—and I get the price now. You really do get what you pay for. If you’re like me, you might feel a little buyer’s remorse when you hit “purchase,” but I assure you, once they arrive and you put them on (assuming you like the way they look and fit), you’ll have a hard time going back to anything less. Buy with confidence.
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Reviewed in the United States on August 25, 2025
★★★★★ 5
Love this brand. Great quality.
Tissot for the win!!
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Reviewed in the United States on October 30, 2025
★★★★★ 5
Great retirement gift
Purchased this as a 43 year retirement gift. He absolutely loves it. At first I wasn't sure about the orange detail but it makes the watch stand out. Excellent purchase.
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Reviewed in the United States on August 6, 2024