Product Overview
Combining thermal and optical imaging in a single turret housing, the Hikvision DS-2TD1228-7/QA is built for sites where both detection accuracy and fire risk monitoring matter. The thermal module uses a 256 x 192 Vanadium Oxide uncooled focal plane array with a 12 um pixel pitch and a NETD of less than 40 mK, delivering heat-based detection that operates independently of visible light conditions. Equipped with a 4MP optical sensor at 6.4mm focal length alongside a 6.9mm thermal lens, the DS-2TD1228-7/QA provides both heat imaging and full-detail visual footage from the same unit. It integrates temperature measurement rules, fire detection, and smoking detection algorithms, making it suited to warehouses, manufacturing workshops, waste processing facilities, and construction sites where early heat anomaly identification is a priority. IP67-rated and rated to operate from -40 degrees C to 65 degrees C, it handles harsh outdoor and semi-industrial environments without compromise.
Key Capabilities
Bi-Spectrum Thermal and Optical Imaging
The DS-2TD1228-7/QA runs both a thermal sensor and a 4MP optical sensor simultaneously. The thermal channel detects heat signatures through smoke, dust, and darkness where optical cameras fail, while the optical channel captures identifiable visual detail for review and evidence.
Fire Detection and Temperature Exception Alarms
The camera measures surface temperatures from -20 degrees C to 150 degrees C with an accuracy of plus or minus 8 degrees C. Up to 21 temperature measurement rules can be configured across 10 points, 10 areas, and 1 line, enabling targeted monitoring of equipment, stockpiles, or production areas where heat anomalies precede ignition.
Smoking Detection Algorithm
A dedicated smoking detection algorithm processes the thermal video feed to identify smoke signatures before visible flames develop. This is particularly useful in facilities handling dry goods, recycling materials, or combustible waste where smouldering can go undetected by standard optical cameras.
Vehicle and Human VCA Classification
The thermal channel supports 4 VCA rule types including line crossing, intrusion, region entrance, and region exiting, with up to 8 simultaneous rules. Human detection reaches 56 m and vehicle detection reaches 168 m, giving perimeter coverage well beyond what standard IR cameras deliver at night.
Visual and Audio Active Deterrence
When a VCA event or temperature exception triggers, the camera can activate a white light alarm with adjustable flashing frequency and an audible alarm with 2 preset voice alerts and up to 6 importable user-defined voice alerts. This allows site-specific warning messages to be deployed automatically on detection.
Advanced Thermal Image Processing
The thermal channel applies linear, histogram, and self-adaptive thermal AGC modes alongside Digital Detail Enhancement and 3D DNR to sharpen thermal contrast and reduce noise. A sun-reflection filter prevents false alarms caused by reflected sunlight on metallic or glass surfaces in outdoor industrial settings.
Best For
- Warehouses and Storage Facilities: Thermal-based temperature monitoring across 21 configurable rules lets operators set threshold alerts on specific storage zones or equipment bays where heat build-up would otherwise go undetected.
- Waste Processing and Incineration Sites: The smoking detection algorithm and fire detection function are directly suited to facilities handling combustible materials, where smouldering events need to be caught before escalating.
- Construction Sites and Compounds: Thermal VCA detection at up to 168 m for vehicles and 56 m for humans covers large open compounds at night without relying on visible lighting, and the camera operates down to -40 degrees C for cold climate installations.
- Manufacturing and Industrial Workshops: Surface temperature monitoring on machinery and production lines can detect overheating components before failure, with alarm outputs configured to trigger relay responses or notifications via FTP and email linkage.
- Outdoor Perimeter Monitoring in Adverse Conditions: IP67 rating with TVS 6000V lightning and surge protection, combined with a working temperature range of -40 degrees C to 65 degrees C, makes the DS-2TD1228-7/QA suitable for exposed outdoor positions in harsh environments.
Why Choose the DS-2TD1228-7/QA
Most surveillance cameras react to events after they are already visible. The DS-2TD1228-7/QA works differently by using its 256 x 192 thermal sensor to detect heat anomalies before smoke or flames become apparent to optical systems. The NETD of less than 40 mK means the sensor resolves temperature differences down to fractions of a degree, enabling detection of gradual heat build-up that would not trigger any motion-based alert. Add smoking detection, fire detection, 21 temperature measurement rules, and vehicle and human VCA at ranges up to 168 m, and this is a camera designed for early warning rather than after-the-fact review. The 10-year detector guarantee, IP67 protection, and TVS 6000V surge rating make it a durable long-term investment for industrial and commercial fire-risk sites. Available at Security Wholesalers as part of the Hikvision DeepInView thermal camera range.
Buyer Decision Tips
Buyer Tip 1 – Temperature Range vs. Application: The DS-2TD1228-7/QA measures surface temperatures from -20 degrees C to 150 degrees C. This range suits most early-warning fire prevention applications including machinery monitoring, stockpile monitoring, and general industrial heat detection. If your application requires measuring very high-temperature sources such as active furnace faces or molten material surfaces above 150 degrees C, confirm the temperature range against your specific monitoring targets before ordering.
Buyer Tip 2 – Thermal FOV and Coverage Planning: The 6.9mm thermal lens provides a 24.9 x 18.7 degree field of view, which is a relatively narrow angle suited to focused monitoring of specific zones, equipment, or entry points rather than wide-area panoramic coverage. Plan your mounting position and angle carefully to ensure the thermal frame covers the exact zone you need to monitor. The optical lens at 6.4mm covers a wider 53.0 x 28.0 degree horizontal field, so thermal and optical coverage areas will not be identical.
Key Features & Technical Specifications
| Thermal Sensor | Vanadium Oxide Uncooled Focal Plane Arrays, 256 x 192 resolution, 12 um pixel pitch |
| Thermal NETD | Less than 40 mK (25 degrees C, F1.1) |
| Thermal Focal Length and FOV | 6.9mm, 24.9 x 18.7 degrees (H x V), F1.0 aperture, spectral range 8 um to 14 um |
| Optical Sensor | 1/2.7″ Progressive Scan CMOS, 2688 x 1520 (4MP) |
| Optical Focal Length and FOV | 6.4mm, 53.0 degrees H x 28.0 degrees V, F1.6 aperture |
| Min. Illumination | 0.0089 Lux at F1.6 AGC ON, 0 Lux with IR |
| IR Range and White Light Range | IR up to 15m (auto-adjusted), white light up to 30m |
| WDR | 120 dB |
| Temperature Measurement | -20 degrees C to 150 degrees C, accuracy plus or minus 8 degrees C, 21 rules (10 points, 10 areas, 1 line) |
| Smart Functions | Fire detection, smoking detection, sun-reflection filter, vehicle and human VCA classification |
| VCA Detection Range | Humans up to 56m, vehicles up to 168m |
| VCA Rules | 4 rule types (line crossing, intrusion, region entrance, region exiting), up to 8 rules total |
| Alarm Outputs | Visual alarm (white light, adjustable flash frequency), audio alarm (2 preset voice alerts, 6 importable user-defined alerts) |
| Video Compression | H.265 / H.264 (main stream), H.265 / H.264 / MJPEG (sub-stream) |
| Local Storage | MicroSD/SDHC/SDXC up to 256GB, NAS (NFS, SMB/CIFS), ANR supported |
| Power Supply | 12VDC plus or minus 25%, PoE (IEEE 802.3af, Class 3), max 6.5W via PoE |
| Protection and Environment | IP67, TVS 6000V lightning protection, surge and voltage transient protection, -40 degrees C to 65 degrees C operating temperature |
| Dimensions and Weight | 138.3mm x 138.3mm x 123.1mm, 940g |
| Thermal Detector Warranty | 10 years |
Ideal Use Cases
Warehouse and Cold Storage Monitoring
Configurable temperature measurement across 21 rules lets operators define alert thresholds on specific bays, racking areas, or electrical switchboards. The camera operates down to -40 degrees C, making it compatible with refrigerated or cold-climate storage installations.
Waste Incineration and Recycling Facilities
The smoking detection algorithm and fire detection function are specifically suited to sites handling combustible waste, recycled materials, and organic stockpiles where smouldering can develop undetected by visible-light cameras, particularly at night or in dusty conditions.
Industrial Machinery and Equipment Monitoring
Mounting the DS-2TD1228-7/QA to monitor motors, conveyor drives, or electrical panels allows temperature exception alarms to trigger before equipment failure or fire risk develops. Alarm output actions include relay output, FTP upload, and email linkage for integration with site management systems.
Construction Site Perimeter Security
Thermal VCA detects human movement at up to 56m and vehicles at up to 168m without any site lighting, making after-hours perimeter monitoring practical. The active deterrence alarm with user-importable voice alerts allows site-specific warning messages to play automatically on intrusion detection.
Manufacturing Workshops with Fire Risk
In workshops using welding, cutting, or heat-generating processes, the thermal channel identifies residual heat sources that remain after work stops. The sun-reflection filter prevents false alarms from metal surfaces or glass skylights, reducing unnecessary alert fatigue for site operators.
Outdoor Industrial Compound Entry Points
At compound gates and entry corridors, the 4MP optical stream at 6.4mm provides identifiable visual detail of vehicles and personnel, while the thermal channel maintains detection capability through fog, smoke, or complete darkness, supported by IP67 and TVS 6000V surge protection for exposed outdoor positions.
Choosing the Right Model
- Choose this model if: Your site requires early fire or heat anomaly detection alongside optical surveillance, particularly in environments with smoke, dust, low light, or combustible materials where a standard optical camera would not provide adequate warning.
- Choose a different model if: Your application is standard perimeter or property surveillance without any fire risk or temperature monitoring requirement. A conventional optical turret or bullet camera will deliver higher resolution at a lower cost where thermal detection capability is not needed.
- Choose a different model if: You need to monitor surface temperatures above 150 degrees C, such as active furnace openings or molten material flows. The temperature measurement range of the DS-2TD1228-7/QA tops out at 150 degrees C and would not be appropriate for those targets.
- Choose a different model if: Wide-angle thermal coverage across a very large open area is the primary requirement. The 6.9mm thermal lens provides a 24.9 x 18.7 degree field of view, which is suited to focused zone monitoring rather than broad panoramic thermal scanning.
FAQs
- What does bi-spectrum mean on the DS-2TD1228-7/QA?
Bi-spectrum means the camera contains 2 independent imaging sensors operating simultaneously. One is a thermal sensor (256 x 192 VOx uncooled FPA) that detects infrared heat radiation, and the other is a 4MP optical CMOS sensor that captures standard visible-light video. Both streams are recorded and available for live view independently, giving operators both a heat map and a visual image of the same scene. - How accurate is the temperature measurement function?
The DS-2TD1228-7/QA measures surface temperatures with an accuracy of plus or minus 8 degrees C across a range of -20 degrees C to 150 degrees C. This level of accuracy is suitable for fire prevention and heat anomaly detection applications. For precision laboratory or clinical temperature measurement, a dedicated measurement instrument would be required rather than a surveillance camera. - Can the DS-2TD1228-7/QA detect smoke in complete darkness?
Yes. Because the smoking detection algorithm processes the thermal channel rather than the optical channel, it detects heat-based smoke signatures regardless of visible light conditions. This is one of the key advantages over optical smoke detection in large open industrial spaces where darkness, dust, or distance would reduce optical detection reliability. - What triggers the white light and audio alarm on this camera?
The white light alarm and audio alarm can be triggered by 2 event types: a VCA event (such as intrusion or line crossing on the thermal channel) or a temperature exception alarm (when a monitored point, area, or line exceeds the configured threshold). Each alarm type has its own preset voice alert, and up to 6 user-importable custom voice files can be shared across both alarm types for site-specific messaging. - Does the DS-2TD1228-7/QA work with Hikvision NVRs and management software?
Yes. The camera supports ISAPI, Hikvision SDK, ISUP, and ONVIF Profile S and Profile G, making it compatible with Hikvision NVRs and the iVMS-4200 and Hik-Connect client platforms. ONVIF compatibility also allows integration with third-party video management systems that support the ONVIF standard. Security Wholesalers can advise on compatible Hikvision NVR models if required. - Is the DS-2TD1228-7/QA suitable for outdoor installation in harsh conditions?
Yes. The camera carries an IP67 weather protection rating, TVS 6000V lightning and surge protection, and a working temperature range of -40 degrees C to 65 degrees C. This combination makes it suitable for exposed outdoor positions including coastal industrial sites, construction compounds, and facilities in extreme climate zones. - What is the detection range of the thermal VCA on this camera?
Using the thermal channel, the DS-2TD1228-7/QA can classify human targets at up to 56m and vehicle targets at up to 168m. These ranges apply to VCA rules including line crossing, intrusion, region entrance, and region exiting, with up to 8 simultaneous rules configurable. Detection at these ranges operates independently of lighting conditions, giving consistent after-hours coverage without requiring site illumination.
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