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Description
Dahua SD7A840FA-HNF 8MP 40X IR High-Speed Network PTZ CameraDahua SD7A840FA HNF 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 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 Protection: IP67/IK10, NEMA 4X support, TVS 6000V surge protection. Operates –40°C to +70°C.
- 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
Lens & DORI Optics (40× Optical Zoom)
| 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 |
| 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, Environment & Protection
| 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 (supported), TVS 6000V lightning/surge/voltage transient protection |
| Anti-corrosion Level | Basic Protection – designed for general use, applicable in areas with no specific anti-corrosion requirements |
| 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
4.2 ★★★★★
Based on 2127 reviews
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Product Reviews
★★★★★ 5
Good value, easy to take, and great quality
Style: 2000IU, Size: 360 Count (Pack of 1), Style: 2000IU, Size: 360 Count (Pack of 1)
I bought these because my doctor recommended Vitamin D3 for overall health and immunity. I’ve tried a few different brands before, and this one stood out as a good balance of quality and value, especially with the 360-count bottle that will last a full year.
Compared to other brands I’ve used, these softgels are equally small and easy to swallow, and the 2000 IU dosage matches what my doctor recommended. I haven’t had any issues with the capsules sticking together, and there’s no noticeable taste or aftertaste.
Overall, a great purchase, and I plan to keep buying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
Good value for the money
Style: 5000IU, Size: 360 Count (Pack of 1)
Odor was not detectable, gentle on the stomach and easy to digest, double check before taking this supplement; it may interact with certain medications, otherwise an excellent product. Good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 4
Great value, easy to take, and Great quality
Style: 2000IU, Size: 360 Count (Pack of 1)
This is one of those no-fuss supplements you can actually stay consistent with. The softgels are small, easy to take, and don’t leave any weird aftertaste. Love that it’s in olive oil for better absorption.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
A great supplement!
Style: 5000IU, Size: 360 Count (Pack of 1)
Great value and it's working very well. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
There is a difference in brands
Style: 5000IU, Size: 360 Count (Pack of 1)
Thank you for allowing me to try your NatureWise Vitamin D3.
There are indeed so many reasons why we should supplement Vitamin D. It is necessary for so many crucial processes in our bodies; from helping us absorb enough calcium and helping us have strong bones and teeth. With everything that is literally "going around" these days, it is crucial that we maintain an efficient and effective immune system. We need Vitamin D to do that.
For me personally, as a 25+ years ago back surgery patient who is still very mobile, one of the ways I benefit from this particular supplement is helping to keep inflammation at bay so that I am able to be more comfortable and more active. I noticed a big improvement when I started taking this NatureWise brand. They apparently make it more "user friendly" to the body. What's the point in taking other brands of anything if your body can't use it, or worse, has to figure out how to try to get rid of it?
I have had this same experience with the other NatureWise products I have chosen to use.
Another of the most important reasons we need adequate Vitamin D, is so that our brains will stay healthy so that we will have less likelihood of developing Alzheimers and/or Dementia. Sound supplementation from a company that uses only quality and natural ingredients is not optional but rather crucial to every person. A person can change their destiny by changing what goes "down the hatch".
Whatever your current lifestyle, you can start right now. The right supplements, along with careful and selective nutrition, can literally re-map a person's health.
I trust NatureWise to help me in my journey to overcome and persevere so that I will have quality to go along with my quantity of life. I encourage everyone to use the products NatureWise offers. Selecting their products saves me time and effort of looking up all of the ingredients listed on some other brands only to find out that those ingredients are basically trash to my body.
It is so important to note that all Vitamin D (or any other) supplements are not created equal. NatureWise is a good company that seems to make careful decisions about the sources, ingredients and processes used in all their products. Thank you NatureWise for providing us a Vitamin D3 supplement using certified organic, cold pressed, extra-virgin olive oil for maximum absorption.
According to world-renowned Dr. David Perlmutter, neurologist, "Vitamin D plays a fundamental role in brain health, immune function, and inflammation. According to Dr. Perlmutter, vitamin D influences the expression of more than 913 genes. Sadly, a vast majority of people are dramatically deficient in this critical steroid hormone, in large part because they've been fooled into fearing sun exposure. You've also been deceived into fearing cholesterol, which is another critical component of health.
"Obviously, sunshine makes vitamin D in your body from some precursor. When I ask my patients what is that precursor, nobody seems to know. I tell them it's this horrible thing called cholesterol, and their eyebrows go up," he says. "Cholesterol is so drastically important for health, because (1) it's the precursor for which you make vitamin D and (2) it's a fundamental compound of every cell in your body and made by every cell in your body. It's a brain antioxidant. It's a precursor for all the steroid sex hormones – it's fundamentally important.""
I have recently became acutely aware of the prevalence and cruelty of Brain diseases. My genius-level, go-getter Mother was diagnosed with a rare form of Dementia. As we know, Dementia and Alzheimers is essentially untreatable and incurable. PREVENTION, however, IS possible, no matter what may be in our "genetic tree". In addition to my mission to obtain as much information to help my mom, I am seeking any solid information that will help me to avoid such a horrible end.
More from Dr. Perlmutter:
"It's important to realize that, despite what the media tells you, your brain is not "programmed" to shrink and fail as a matter of course as you age. We now know that every activity in which you engage—be it exercise, the foods you eat, the supplements you take, your personal relationships, your emotional state, your sleep patterns—all of these factors dramatically influence your genetic expression from moment to moment. Any given gene is not in a static "on" or "off" position. Neither are they deterministic. You may be a carrier of a gene that never gets expressed, simply because you never supply the required environment for it to turn on.
"We interact with our genome every moment of our lives, and we can do so very, very positively," Dr. Perlmutter says. "Keeping your blood sugar low is very positive in terms of allowing the genes to express reduced inflammation, which increase the production of life-giving antioxidants. So that's rule number one: You can change your genetic destiny.
Rule number two: you can change your genetic destiny to grow new brain cells, specifically in the hippocampus... Your brain's memory center regenerates. You are constantly growing new brain cells into your 50s, 60s, 80s, and 90s – throughout your lifetime – through a process called neurogenesis.
That said, these two ideas come together because you can turn on your genes through lifestyle choices that enhance neurogenesis and that enhance regrowth of cells and expansion of your brain's memory center. This was proven by researchers recently. They demonstrated that there are factors under our control that can make that happen.""
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 5, 2014
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