Dahua DH-SD8A840-HNF-PA 4K 40x Starlight IR PTZ AI Network Camera

• Model: SD8A840-HNF-PA — 8 MP 40× Starlight IR PTZ AI Network Camera

• Key Features at a Glance:

  • 1/1.8″ 8 MP STARVIS™ CMOS sensor

  • Powerful 40× optical zoom

  • Starlight technology for excellent low-light visibility

  • Smart wiper

  • IP67 outdoor rating

  • Perimeter protection with metadata, face recognition, and auto-tracking

Detailed Specifications

Imaging & Optics

• Sensor & Resolution: 1/1.8″ CMOS with 8 MP (3840 × 2160) resolution

• Zoom & Focus: 40× optical zoom (5.6 mm–223 mm focal length), auto/semi-auto/manual focus, close focus 0.5–2 m, 16× digital zoom

• Low-Light Performance:

  • Minimum illumination: Color 0.005 lux@F1.4; B/W 0.0005 lux@F1.4; 0 lux with IR on

  • IR illumination distance up to 500 m (10 IR lights)

• DORI Detection Ranges:

  • Detect: up to 4,400 m

  • Observe: up to 1,740 m

  • Recognize: up to 880 m

  • Identify: up to 440 m

Pan–Tilt–Zoom (PTZ)

• Range & Speed:

  • Pan: 0° to 360° at 0.1°/s – 240°/s

  • Tilt: –30° to +90° (auto flip 180°) at 0.1°/s – 100°/s

  • High-speed presets: Pan at 240°/s; Tilt at 120°/s

• Preset & Pattern Support:

  • 300 presets, 8 tours (up to 32 presets per tour), 5 patterns, 5 scan modes, idle motion support, and power-off memory feature

Intelligent Features

• Event Triggers: Motion detection, video tampering, scene change, network disconnection, IP conflict, illegal access, storage anomaly

• Perimeter Protection (IVS): Detects tripwire crossings, intrusions, fence climbing, loitering, object abandonment/missing, fast movement, parking detection, gatherings, and classifies humans vs. vehicles

• Metadata Analytics: Captures attributes of human bodies, faces, motor vehicles, and non-motor vehicles

• Face Recognition & Auto-Tracking: Both supported, enhancing surveillance automation

Video & Compression

• Compression Options: Smart H.265+, H.265, Smart H.264+, H.264, and MJPEG (sub-stream)

• Streaming: Supports three concurrent streams

• Resolutions & Frame Rates: 4K, 4M, 1080p, 1.3M, 720p, D1, CIF; Main stream up to 30 fps; sub-streams variable

• Advanced Imaging Controls: WDR (120 dB), BLC, HLC, defog (optical), white balance, gain, noise reduction (2D/3D), ROI, privacy masks (up to 24, 8 visible), image rotation

Audio

• Compression Supported: G.711a/mu, G.726, AAC, G.722.1, G.729, MPEG2-Layer2, G.723

Network & Storage

• Connectivity: RJ-45 (10/100), IPv4/6, HTTPS, QoS, FTP, SMTP, SNMP v1/v2c/v3, NTP, RTSP, RTMP, and more

• Interoperability: ONVIF Profiles S, G, T; CGI

• Storage Options: Micro SD (up to 512 GB), FTP

• User Access: Supports up to 20 users (64 Mb bandwidth)

Physical & Environmental

• Construction: Durable metal casing

• Dimensions & Weight: 415.6 mm × Φ262 mm; net weight 10 kg; gross weight 12 kg

• Environmental Ratings: Operating temperature –40 °C to +70 °C; humidity ≤95% RH

• Protection Features: IP67, 6000 V TVS lightning protection, surge and voltage transient protection

Power

• Supply: 36 V DC, 2.23 A (±25%) or Hi-PoE

• Consumption: Typical 30 W; maximum 48 W (with illuminator + PTZ)

Accessories & Downloads

Compatible mounts include junction box, ceiling, wall, plane, and pole brackets. Datasheet, user manual, drawings, and firmware are available for download.

Use Case Scenarios

1. Perimeter and Border Security

Perfect for securing wide-open areas, fences, and border zones. Its detection/identification range (up to 4,400 m) and advanced perimeter IVS make it ideal for early threat detection and real-time tracking.

2. Critical Infrastructure Monitoring

Designed for power plants, airports, refineries, or transport hubs. The long-range IR vision, weatherproof build (IP67), and rugged casing ensure reliable operation in extreme environments.

3. Urban Traffic & Highways Surveillance

Capable of detecting vehicles, loitering, abandoned objects, and providing vehicle and face metadata. Well-suited for highways, toll stations, and busy intersections that demand high-resolution PTZ coverage.

4. Large Campus & Industrial Patrols

Universities, industrial parks, and large commercial campuses benefit from auto-tracking, patrol tours, and fast preset speeds, ensuring comprehensive, automated surveillance.

5. Maritime & Port Security

With its strong IR performance and tough construction, it is effective in port and dock environments, offering clear ship recognition and tracking across wide harbor areas.

6. Outdoor Retail Complexes & Parking Areas

Face recognition, loitering detection, and vehicle classification boost both safety and loss prevention. Privacy masking ensures compliance in areas with public access.

Summary

The Dahua SD8A840-HNF-PA delivers:

• Outstanding 4K imaging and powerful 40× optical zoom with up to 500 m IR range

• Advanced AI including perimeter protection, auto-tracking, and face recognition

• Rugged outdoor design with IP67, lightning protection, and wide temperature tolerance

• Flexible PTZ operation, multiple compression formats, and scalable streaming/storage

It is an ideal choice for demanding applications such as border security, industrial sites, city traffic management, large campuses, maritime environments, and public safety projects.