Product SKU: DH-SD49225DB-HC
Product Overview
The Dahua DH-SD49225DB-HC is a 2MP Starlight infrared HDCVI PTZ camera designed for long-range operator-controlled surveillance across large outdoor and indoor areas. Its 4.8–120mm motorised lens provides 25× optical zoom, allowing users to move from a broad 60.6° horizontal view to a narrow 3.2° close-up view without relying solely on digital enlargement. Six integrated infrared illuminators provide a specified night range of up to 100 metres, while Starlight sensitivity and 120dB true WDR support difficult lighting conditions. The PTZ mechanism offers continuous 360° pan, 300 presets, tours, patterns and scans for repeatable patrol coverage. HDCVI connectivity, audio input, alarm I/O, 12V DC power and IP66 protection suit compatible XVR-based CCTV systems.
Key Capabilities
25× Optical Zoom Coverage
The 4.8–120mm motorised lens moves from a 60.6° wide horizontal view to a narrow 3.2° view, supporting both broad area monitoring and close inspection of distant activity.
100m Infrared Night Vision
Six integrated IR illuminators provide a specified night range of up to 100 metres, with zoom-priority and manual illuminator controls available.
Responsive PTZ Movement
Continuous 360° pan, –15° to +90° tilt, 180° auto flip and preset speeds up to 240° 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 glare, deep shadows, haze and rapidly changing outdoor light.
Rugged IP66 Protection
Weather protection, TVS 6000V lightning resistance, surge protection and voltage-transient protection support demanding outdoor applications when installed correctly.
Best For
- Large Outdoor Areas: Covers car parks, yards, campuses and commercial perimeters from an elevated PTZ position.
- Long-Range Night Monitoring: Integrated 100m IR supports low-light coverage without requiring a separate illuminator in many applications.
- Operator-Controlled Surveillance: 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.
- Exposed Commercial Sites: IP66 and surge protection suit demanding installations when the mounting, earthing and cabling are correctly designed.
Why Choose the DH-SD49225DB-HC
The DH-SD49225DB-HC is a strong choice for sites that need flexible PTZ coverage, long-range infrared illumination and compatibility with an HDCVI recording platform. Its 25× optical zoom reaches substantially further than a fixed-lens camera, and the combination of 300 presets, tours, patterns, scans and power-off memory supports both live operator response and repeatable patrol routes. Starlight imaging, 120dB WDR and 100m IR help maintain usable video across changing light conditions, while IP66 protection supports exposed applications. Supplied by Security Wholesalers, the camera is best matched with a compatible XVR, correctly sized 12V DC power supply and verified mounting accessories.
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.
IR Tip: The 100m figure is a maximum specification. Target reflectivity, zoom position, rain, dust, nearby surfaces and mounting height can reduce practical night detail.
Mounting Tip: Account for the 3kg camera weight plus all brackets and accessories. The structure, fixings, cable route, lightning protection and power cable must be suitable for the installation environment.
Key Features & Technical Specifications
| Model |
DH-SD49225DB-HC |
| Product Type |
2MP Starlight infrared HDCVI 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; 0 lux with IR active. |
| Infrared Illumination |
Up to 100m using 6 IR illuminators. |
| Illuminator Control |
Zoom priority or manual. |
| Lens |
4.8–120mm motorised zoom lens. |
| Optical Zoom |
25×. |
| Digital Zoom |
16×. |
| Maximum Aperture |
F1.6–F3.5. |
| Field of View |
Horizontal 60.6°–3.2°; vertical 34.1°–1.8°; diagonal 69.4°–3.7°. |
| Focus Control |
Automatic, semi-automatic or manual. |
| Close Focus Distance |
0.1–2m, depending on zoom position. |
| DORI Distance |
Detect 1655.2m, observe 653.8m, recognise 331.0m and identify 165.5m under the EN 62676-4 calculation. |
| Pan Range |
0°–360° endless. |
| Tilt Range |
–15° to +90° with 180° auto flip. |
| Manual PTZ Speed |
Pan 0.1°–200°/s; tilt 0.1°–120°/s. |
| Preset Speed |
Pan up to 240°/s; tilt up to 200°/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, 180° image rotation and privacy masking. |
| Signal Output |
1-channel BNC output supporting TVI, CVI, 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 |
12V DC, 3A ±10%. |
| Power Consumption |
10W basic; maximum 22W with PTZ, illuminator and heater operating. |
| Operating Temperature |
–40 °C to +70 °C. |
| Operating Humidity |
Up to 95%. |
| Protection |
IP66, TVS 6000V lightning protection, surge protection and voltage-transient protection. |
| Dimensions |
269.9mm high × 160.0mm diameter. |
| Net Weight |
3.0kg. |
| Gross Weight |
4.2kg. |
| Certifications |
CE, FCC and UL standards listed by Dahua. |
Ideal Use Cases
Warehouses and Loading Areas
Use presets and 25× optical zoom to move between loading docks, roller doors, vehicle approaches and perimeter points from one elevated PTZ position.
Commercial Car Parks
The PTZ mechanism can survey broad parking areas and zoom towards incidents, access lanes or boundary activity when operated by security staff.
Industrial Yards
IP66 protection, 100m IR and broad temperature tolerance suit compounds where long-range night monitoring and coaxial PTZ control are required.
Retail and Shopping Precincts
High-speed movement and programmed patrol 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 compatible coaxial infrastructure and an XVR are being retained while adding motorised 1080p PTZ coverage with long-range IR.
Choosing the Right Model
- Choose the DH-SD49225DB-HC if: You need a rugged 1080p HDCVI PTZ with 25× optical zoom, 100m IR and programmable patrol functions.
- 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 higher-resolution PTZ if: More than 2MP detail is required for wide-area overview or digital evidence.
- Use fixed cameras as well if: Continuous evidence recording of critical areas must be maintained while the PTZ is looking elsewhere.
FAQs
- Does the Dahua DH-SD49225DB-HC connect to an NVR or an XVR?
The DH-SD49225DB-HC is an HDCVI analogue PTZ camera with a BNC video output, so it is normally connected to a compatible Dahua XVR rather than directly to a standard IP NVR. The recorder must support the selected CVI, TVI, AHD or diagnostic CVBS signal, 1080p recording 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 60.6° at the wide end to 3.2° at full zoom. Optical zoom places more image detail on distant subjects than digital enlargement, but identification performance still depends on distance, lighting, weather, camera stability, recorder quality and operator positioning.
- How far does the infrared night vision reach?
Dahua specifies infrared illumination up to 100 metres using six IR illuminators. The camera can produce an image at 0 lux when the IR system is active. Actual usable distance depends on target reflectivity, zoom position, mounting height, nearby surfaces, weather and scene layout. Highly reflective objects close to the camera can also reduce distant night detail.
- Does the SD49225DB-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 power-off memory. These functions automate programmed positions and patrol routes, but they should not be described as AI person or vehicle tracking. Select 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 200° per second and tilt speeds from 0.1° to 120° per second. Preset movement reaches up to 240° per second for pan and 200° per second for tilt. The mechanism provides continuous 360° pan, –15° to +90° tilt and 180° auto flip.
- Can audio devices and alarms be connected?
Yes. The DH-SD49225DB-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 the camera suitable for exposed outdoor locations?
Yes. The housing is rated IP66 and specified for operation from –40 °C to +70 °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, particularly in elevated or exposed positions.
- What should I check before ordering this HDCVI PTZ camera?
Confirm that the recorder supports 1080p HDCVI PTZ video and control, that 12V DC at the required current can be delivered correctly, and that the selected brackets suit the mounting surface. Also check whether external audio or alarm wiring is required. Security Wholesalers can assist with matching the camera, XVR, power supply and mounting accessories.
Compatible Accessories
Included according to the Dahua datasheet:
- PFB305W Wall Mount Bracket
Optional mounting and power accessories:
- PFA120 Junction Box
- PFA111 Mount Adapter
- PFB300C Ceiling Mount Bracket
- PFB301C Ceiling Mount Bracket
- PFA150 Pole Mount Bracket
- PFA151 Corner Mount Bracket
- PFB301S-E Plane Mount Bracket
- PFB303S Parapet Mount Bracket
- 12V DC / 3A Power Supply
Additional Information
Dahua DH-SD49225DB-HC Datasheet
