Product SKU: DH-SD50225DB-HC
Product Overview
The Dahua DH-SD50225DB-HC is a 2MP Starlight HDCVI speed-dome camera designed for operator-controlled surveillance across large outdoor and indoor areas. Its 4.8–120mm motorised lens delivers 25× optical zoom, allowing users to move from a broad 59.7° horizontal view to a narrow 3.5° close-up view without relying solely on digital enlargement. The PTZ mechanism provides continuous 360° pan, rapid preset movement and programmable presets, tours, patterns and scans for repeatable coverage. Low-light imaging, 120dB true WDR, 3D noise reduction and electronic defog help maintain useful 1080p video in challenging scenes. The camera uses coaxial HDCVI connectivity and 24V DC power, with audio input, alarm I/O, IP67 weather protection and IK10 impact resistance. Built-in infrared illumination and intelligent auto-tracking are not listed for this model.
Key Capabilities
25× Optical Zoom Coverage
The 4.8–120mm motorised lens moves from a 59.7° wide horizontal view to a narrow 3.5° view, giving operators flexible overview and close-up positioning across expansive areas.
Responsive High-Speed PTZ
Continuous 360° pan, 0°–90° tilt, 180° auto flip and preset speeds up to 500° per second support fast movement between important viewpoints.
Starlight Low-Light Imaging
A 1/2.8-inch 2MP CMOS sensor and F1.6 maximum aperture provide colour imaging down to 0.005 lux and black-and-white imaging down to 0.0005 lux.
120dB True WDR
Wide dynamic range, BLC, HLC, 2D/3D noise reduction and electronic defog help manage difficult scenes with glare, shadows, haze and changing outdoor light.
Programmable PTZ Operation
The camera stores 300 presets, eight tours, five patterns and five scans, with power-off memory and configurable idle movement for repeatable surveillance routines.
Rugged IP67 and IK10 Housing
Weather, impact, lightning, surge and voltage-transient protection support demanding outdoor applications when the camera is professionally mounted and powered.
Best For
- Large Outdoor Areas: Covers car parks, yards, campuses and commercial perimeters from an elevated PTZ position.
- Operator-Controlled Monitoring: High manual and preset speeds help security staff move quickly between incidents and important viewpoints.
- Coaxial CCTV Upgrades: Adds motorised PTZ coverage to a compatible HDCVI XVR system without converting the site to IP cameras.
- Low-Light Locations: Starlight imaging supports scenes with some ambient light where integrated infrared is not required.
- Exposed Commercial Sites: IP67, IK10 and surge protection suit demanding installations when the mounting and cabling are correctly designed.
Why Choose the DH-SD50225DB-HC
The DH-SD50225DB-HC is a strong choice for sites that need flexible PTZ coverage while retaining a compatible coaxial HDCVI recording platform. Its 25× optical zoom reaches substantially further than a fixed-lens camera, and the combination of 300 presets, rapid 500° per second preset movement, tours, patterns and scans supports both live operator response and repeatable patrol routes. Starlight imaging and 120dB WDR help in mixed or low light, while IP67 and IK10 protection support exposed applications. Supplied by Security Wholesalers, the camera is especially suitable where a compatible XVR, 24V DC power and suitable mounting structure are already planned. Buyers needing integrated IR, PoE, network streaming or AI auto-tracking should select a different PTZ model.
Buyer Decision Tips
Recorder Tip: This is an HDCVI analogue camera, not an IP camera. Confirm that the selected XVR supports 1080p HDCVI PTZ video, control, audio and alarm functions.
Night Coverage Tip: The specification lists Starlight sensitivity but no built-in IR. Completely dark areas may require external lighting or a PTZ model with integrated infrared illumination.
Mounting Tip: Account for the 2.5kg camera weight plus all brackets and accessories. The supporting structure, fixings, cable route, lightning protection and power cable must be designed for the installation environment.
Key Features & Technical Specifications
| Model |
DH-SD50225DB-HC |
| Product Type |
2MP Starlight HDCVI high-speed PTZ camera. |
| Image Sensor |
1/2.8-inch CMOS. |
| Maximum Resolution |
1920 × 1080. |
| Video Frame Rate |
1080p at 25/30 fps; 720p at 25/30/50/60 fps. |
| Minimum Illumination |
0.005 lux at F1.6 in colour; 0.0005 lux at F1.6 in black and white. |
| Lens |
4.8–120mm motorised zoom lens. |
| Optical Zoom |
25×. |
| Digital Zoom |
16×. |
| Maximum Aperture |
F1.6–F3.5. |
| Field of View |
Horizontal 59.7°–3.5°; vertical 34.1°–2.0°; diagonal 68.6°–4.0°. |
| Focus Control |
Automatic, semi-automatic or manual. |
| Close Focus Distance |
0.1–2m, depending on zoom position. |
| Pan Range |
0°–360° endless. |
| Tilt Range |
0° to +90° with 180° auto flip. |
| Manual PTZ Speed |
Pan 0.1°–350°/s; tilt 0.1°–250°/s. |
| Preset Speed |
Pan and tilt up to 500°/s. |
| Presets and Routes |
300 presets, 8 tours with up to 32 presets each, 5 patterns and 5 scans. |
| Power-Off Memory |
Supported. |
| Idle Motion |
Pattern, preset, scan or tour. |
| PTZ Protocol |
DH-SD and Pelco-P/D with automatic recognition. |
| Image Processing |
120dB WDR, BLC, HLC, 2D NR, 3D NR, electronic defog and 180° image rotation. |
| Privacy Masking |
Supported. |
| Signal Output |
1-channel BNC output supporting CVI, TVI, AHD and diagnostic CVBS. |
| RS-485 |
1 interface, 1200–9600bps. |
| Audio Input |
1-channel line input via bare wire. |
| Alarm Inputs |
2 on/off inputs, 0–5V DC. |
| Alarm Output |
1. |
| Alarm Linkage |
Scan, preset, tour, pattern or digital alarm output. |
| Power Supply |
24V DC, 2.5A ±25%. |
| Power Consumption |
10.5W basic; maximum 14W during PTZ operation. |
| Operating Temperature |
–40 °C to +60 °C. |
| Operating Humidity |
Up to 95%. |
| Protection |
IP67, IK10, TVS 6000V lightning protection, surge protection and voltage-transient protection. |
| Dimensions |
253.0mm high × 186.2mm diameter. |
| Net Weight |
2.5kg. |
| Gross Weight |
4.4kg. |
| Certifications |
CE, FCC and UL standards listed by Dahua. |
Ideal Use Cases
Warehouses and Loading Areas
Use programmable presets and 25× optical zoom to move between roller doors, loading zones, aisles and vehicle approaches from one elevated camera position.
Commercial Car Parks
The PTZ mechanism can survey broad parking areas and zoom towards incidents, access lanes or perimeter points when operated by security staff.
Industrial Yards
IP67, IK10 and broad temperature tolerance suit exposed compounds where a rugged coaxial PTZ is required and suitable lighting is available.
Retail and Shopping Precincts
High-speed movement and preset routes support active monitoring of entrances, pedestrian zones, service lanes and external public areas.
School and Campus Grounds
A central PTZ position can provide flexible operator-controlled views across courtyards, gates and large outdoor common areas, subject to privacy requirements.
HDCVI System Upgrades
Suitable where an existing compatible coaxial infrastructure and XVR are being retained while adding motorised 1080p PTZ coverage.
Choosing the Right Model
- Choose the DH-SD50225DB-HC if: You need a rugged 1080p HDCVI PTZ with 25× optical zoom, fast presets and programmable patrol functions.
- Choose an IR PTZ if: The scene becomes completely dark and there is no dependable external lighting.
- Choose an intelligent PTZ if: Automatic person or vehicle tracking and AI analytics are required rather than manual or preset-based movement.
- Choose an IP PTZ if: The project requires PoE, Ethernet networking, direct NVR connection or IP-based integration.
- Choose a fixed camera as well if: Continuous evidence recording of one critical area must be maintained while the PTZ is looking elsewhere.
FAQs
- Does the Dahua DH-SD50225DB-HC work with an NVR or an XVR?
The DH-SD50225DB-HC is an HDCVI analogue PTZ camera with a BNC video output, so it is normally paired with a compatible Dahua XVR rather than connected directly to a standard IP NVR. The recorder must support the selected CVI, TVI, AHD or diagnostic CVBS output, 1080p video and PTZ control. Confirm recorder compatibility before ordering.
- How much detail does the 25× optical zoom provide?
The 4.8–120mm motorised lens provides 25× optical zoom, changing the horizontal field of view from approximately 59.7° at the wide end to 3.5° at full zoom. Optical zoom preserves more usable detail than digital enlargement, but identification performance still depends on distance, lighting, atmosphere, camera stability, recorder quality and correct operator positioning.
- Does this PTZ camera have built-in infrared night vision?
No built-in infrared illuminator is listed for the DH-SD50225DB-HC. Its Starlight sensor is designed to produce useful images in very low ambient light, with specified minimum illumination of 0.005 lux in colour and 0.0005 lux in black and white. Locations with no usable light may require suitable external illumination or a different PTZ model with integrated IR.
- Does the SD50225DB-HC support automatic tracking?
Intelligent automatic target tracking is not listed for this model. The camera supports manual PTZ control, 300 presets, eight tours, five patterns, five scans, idle motion and alarm-linked movement. These functions automate programmed camera positions and routes, but they should not be described as AI person or vehicle tracking. Choose an intelligent PTZ model when automatic target following is essential.
- How fast can the camera pan and tilt?
The camera provides manual pan speeds from 0.1° to 350° per second and tilt speeds from 0.1° to 250° per second. Preset movement reaches up to 500° per second for both pan and tilt. The mechanism offers continuous 360° pan, 0° to 90° tilt and 180° auto flip for responsive coverage of large areas.
- Can audio devices and alarms be connected?
Yes. The DH-SD50225DB-HC provides one line-level audio input, two alarm inputs and one alarm output. Alarm events can activate a scan, preset, tour, pattern or digital alarm output when the compatible recorder and wiring are configured correctly. The camera does not list a built-in microphone or speaker, so external audio equipment is required where audio capture is needed.
- Is this camera suitable for exposed outdoor locations?
Yes. The housing is rated IP67 for environmental protection and IK10 for impact resistance, with operation specified from –40 °C to +60 °C. It also includes TVS 6000V lightning, surge and voltage-transient protection. Correct mounting, earthing, surge protection, cable sealing and structural support remain essential for a reliable outdoor PTZ installation.
- What should I check before ordering this HDCVI PTZ camera?
Confirm that the recorder supports 1080p HDCVI PTZ video and control, that 24V DC power can be delivered correctly, and that the selected bracket suits the mounting surface. Also check whether external illumination, audio devices or alarm wiring are required. Security Wholesalers can assist with matching the camera, XVR, power supply and mounting accessories.
Compatible Accessories
Supplied according to the Dahua datasheet:
- DC24V/2.5A Power Adapter
- PFA110 Mount Adapter
- PFB300S Wall Mount Bracket
Optional mounting accessories:
- PFA120 Junction Box
- PFB300C or PFB301C Ceiling Mount Bracket
- PFA150 Pole Mount Bracket
- PFA151 Corner Mount Bracket
- PFB303S Parapet Mount Bracket
- PFB301S-E Plane Mount Bracket
Additional Information
Dahua SD50225DB-HC Datasheet
