Dahua SD7A840FA-HNF 8MP 40X IR High-Speed Network PTZ Camera
SKU: 82141314062

Dahua SD7A840FA-HNF 8MP 40X IR High-Speed Network PTZ Camera

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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)
Zoom Detect Observe Recognize Identify
Wide (5.5 mm) 110 m (360.89 ft) 43.45 m (142.55 ft) 22 m (72.18 ft) 11 m (36.09 ft)
Tele (220 mm) 4,400 m (14,435.70 ft) 1,738 m (5,702.10 ft) 880 m (2,887.14 ft) 440 m (1,443.57 ft)
Note: Optical detection distances per EN-62676-4; intelligent function distances may vary.

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:
  1. 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
SKU: 82141314062

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Carla
Louisville, US
★★★★★ 4
Traje
Size: XX-Large, Color: Dark Black
El traje se lo compré a mi hijo, dude en comprarlo por internet ya que el tiene 16 años es alto y de complexión robusto, el traje viene de tres piezas el bordado del saco es muy bonito la calidad de la tela es muy buena y resistente viene de acuerdo a la talla, no llega ni muy reducido la talla ni muy grande, solo el pantalón viene sin costura para que lo pongas al largo que tú quieres
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Reviewed in the United States on February 5, 2026
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Trasha
Battle Creek, US
★★★★★ 5
Nice
Size: X-Large, Color: Royal Blue
Nice to size great fit very nice
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Reviewed in the United States on March 10, 2026
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Mark
Waukegan, US
★★★★★ 5
Suit looks great for fun formal events
Size: X-Large, Color: Green
The style and fit are great. I did notice a white thread in the shoulder poking out. I used a marker to darken it so it was not noticeable but other than that this suit really looks great. We have a music event in a couple of weeks that I am wearing this to and think it will delight as a sharp but different. I was also happy that it did not require alterations, sleeve length was on spot and everything fit great (XL) also this is a slim fit but I am not that slim and it fit nicely on me. As long as it doesn't disintegrate during the event I will consider this money well spent.
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Reviewed in the United States on January 13, 2025
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Lis George
Cuba, US
★★★★★ 5
Very stylish & tailored fit
Size: Small, Color: Pink
My husband purchased this suit as a “flower-bro” at my sister’s wedding. Unfortunately the color theme for the wedding was changed so he had to change it out which I was sad about because it fit him very well and looked great! The quality was good and the fit looked tailored.
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Reviewed in the United States on January 7, 2026
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Amazon Customer
Lexington, US
★★★★★ 5
Loved
Size: Small, Color: Sliver, Size: Small, Color: Sliver
Loved it. Fit well, sizing was good, however think I could have gotten my son the next size down. We ended up buy a smaller size pants.
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