Dahua SD4A425DB-HNY 4MP Starlight AI PTZ Camera 25x Zoom
The Dahua SD4A425DB-HNY delivers razor-sharp 4MP images, even in low light, thanks to Starlight technology. With the 25x optical zoom, you can bring details closer with ease, and with smart AI functions such as person and vehicle detection and Auto Tracking, you do not miss a single important moment. Ruggedly built with IP66 and 6kV surge protection, suitable for 12V DC and PoE+.
What this camera does
This PTZ camera combines ease of use with smart security. WizSense recognises people and vehicles and filters out noise such as moving trees or rain. The camera can follow targets automatically, while you switch quickly to important positions using presets and tours. Thanks to Smart H.265+, you save storage and bandwidth without loss of quality. In short: clear images straight away, fewer false alarms and maximum control.
- 4MP Starlight image quality: clear, colourful images in low light for reliable identification.
- 25x optical zoom: zoom in far without loss of quality; ideal for large sites and long lines of sight.
- WizSense AI: smart detection of people and vehicles, perimeter protection and fast searching without noise.
- Auto Tracking: the selected target is followed automatically for continuous oversight.
- Professional PTZ performance: Pan 0°, 360° (endless), Tilt -5°, 90° with auto flip (180°)
- Manual speed: Pan 0.1°, 240°/s, Tilt 0.1°, 160°/s
- Preset speed: Pan 240°/s, Tilt 160°/s
- 300 presets, 8 tours (up to 32 presets per tour), 5 patterns, 5 scans
- Idle Motion: Preset/Tour/Pattern/Scanning
The details at a glance
| Resolution | 4 MP |
| Housing | IP66 |
| Power supply | PoE or 12 V DC |
| Model code | SD4A425DB-HNY |
The full specification can be found in the Dahua datasheet, under the Downloads tab.
What you will receive
- Dahua SD4A425DB-HNY 4MP Starlight AI PTZ Camera 25x Zoom
- 12V 2A power adapter (included)
- Mounting and fixing materials (basic)
- Waterproof RJ45 cable gland
- Quick start guide/documentation
Frequently asked questions
Do I need a separate power supply?
No, with PoE, power and video run over the same network cable. Your recorder or switch must then supply PoE. If it does not, the camera can run on a separate 12 V power supply.
Can this camera be mounted outdoors?
Yes. The housing is IP66 and is therefore made for outdoor use. Mount it with screws and wall plugs, and route the cable through the supplied cable gland so that no moisture reaches the connection.
Does the camera work with my phone?
Yes, with the free Dahua DMSS app you can watch live, play back recordings and receive notifications. The link to the app is under the Downloads tab.
Which mounting parts do I need?
That depends on the surface. The parts that Dahua lists for this model are shown under "Frequently bought together" on this page. If you are unsure, call or email us and we will help you check.
