Product Overview
For facilities where perimeter intrusion and early fire detection must operate simultaneously around the clock, the DS-2TD2628-3/QA delivers bi-spectrum thermal and optical imaging in a rugged outdoor bullet housing. Featuring a 256×192 VOx uncooled focal plane array with 12 µm pixel pitch and NETD below 40 mK, this camera provides high-sensitivity thermal imaging capable of detecting human and vehicle movement through darkness, light fog, and smoke conditions where standard optical cameras cannot. Equipped with a 4MP sensor offering 120 dB WDR and near-zero-lux performance, it pairs visual context with thermal data for confident scene assessment. It integrates deep-learning VCA for vehicle and human classification, temperature exception alarms across -20°C to 150°C, and active smoke detection with sun-reflection filtering. This model is also referenced as the HM-TD2628-3/G1/T3A under Hikvision’s updated product naming. An approximately 70-day lead time applies and should be factored into project planning from the outset.
Key Capabilities
256×192 VOx Thermal Sensor
The 256×192 uncooled focal plane array with 12 µm pixel pitch and NETD below 40 mK resolves finer temperature differences across a scene than lower-resolution thermal sensors, supporting earlier and more reliable detection of heat signatures at the perimeter or across open industrial yards.
Deep-Learning Vehicle and Human Classification
On-board deep-learning VCA distinguishes between vehicles and people crossing defined zones or lines, reducing nuisance alerts caused by animals, wind, or environmental movement. Up to 8 VCA rules can be configured, making this suitable for multi-zone perimeter layouts at industrial and commercial sites.
Temperature Exception Alarms
The camera monitors temperature across point, area, and line rule types within a -20°C to 150°C range at ±8°C accuracy. When a threshold is exceeded, it triggers alerts via relay output, FTP, or email, providing an early warning layer for overheating equipment, hot spots, or developing fire conditions.
Smoke Detection and Sun-Reflection Filter
Firmware-based smoke detection provides an additional safety layer beyond temperature anomalies, enabling earlier fire identification in warehouses or outdoor industrial areas. The sun-reflection filter reduces false triggers caused by glare or reflected light on metallic surfaces, improving alarm reliability in daytime conditions.
4MP Optical Imaging with 120 dB WDR
The 4MP 1/2.7-inch CMOS sensor with 120 dB WDR and minimum illumination of approximately 0.0089 Lux captures usable optical detail in challenging light conditions at the scene. Paired with an integrated white-light illuminator reaching approximately 30 m, it provides a visual reference channel alongside the thermal detection layer.
Flexible Storage and Platform Integration
Local microSD/SDHC/SDXC storage up to 256 GB, NAS support, and ANR redundancy allow footage to be retained even during brief network outages. ONVIF Profiles S, G, and T, along with ISAPI and Hik-SDK, allow integration with a broad range of third-party management platforms used in larger commercial or industrial installations.
Best For
- Industrial Perimeter Monitoring: The thermal sensor detects movement through darkness and light obscurants such as smoke or fog where optical cameras alone would miss activity, making it suited to fence line and yard perimeter coverage at factories, depots, and processing facilities.
- Warehouse and Storage Facility Fire Detection: Temperature exception alarms and smoke detection work together to flag developing fire conditions in large storage environments before visible flames appear, supporting early intervention and reducing asset or inventory loss.
- Construction Site Security: The vehicle and human classification VCA allows after-hours intrusion detection across large open site areas without generating constant false alerts from environmental movement, supporting unmanned overnight monitoring.
- Critical Infrastructure and Data Centres: Temperature monitoring across equipment zones, relay output linkage, and smoke detection provide an automated safety monitoring layer for server rooms, electrical substations, or plant rooms where equipment overheating is a primary risk.
- Outdoor Car Parks and Loading Docks: The 50-degree thermal field of view combined with a 4MP optical channel covers broad approach areas at loading zones or multi-level car parks, with vehicle classification helping separate operational traffic from after-hours intrusion.
Why Choose the DS-2TD2628-3/QA
The DS-2TD2628-3/QA occupies a specific position within the HeatPro bi-spectrum range: it delivers a higher thermal resolution than entry-level models in the same family, pairing 256×192 VOx imaging and 12 µm pixel pitch with deep-learning vehicle and human classification that simpler thermal cameras do not include. Where a basic perimeter thermal camera detects a heat source without qualifying it, this model distinguishes between a person and a vehicle across up to 8 configured VCA rules, reducing after-hours alarm fatigue on monitored sites. The addition of smoke detection and sun-reflection filtering, combined with a 10-year thermal detector guarantee, reflects a device designed for sustained deployment in demanding conditions rather than short-cycle replacement. Available through Security Wholesalers, this model is positioned for integrators and facilities managers specifying long-term thermal perimeter and fire safety solutions in industrial and commercial environments.
Buyer Decision Tips
Lead Time Planning: This camera carries an approximately 70-day lead time from order. Projects specifying the DS-2TD2628-3/QA should account for this well in advance of installation dates, particularly for staged multi-site rollouts or time-sensitive building handovers. Do not assume same-week availability.
Temperature Accuracy vs. Alarm Thresholds: The temperature measurement range of -20°C to 150°C with ±8°C accuracy is well suited to exception alarms and hotspot detection but is not a substitute for a precision industrial thermometer. When setting alarm thresholds, allow sufficient margin above ambient operating temperatures to avoid nuisance triggers from normal equipment heat signatures.
Key Features & Technical Specifications
| Product Model |
DS-2TD2628-3/QA (also referenced as HM-TD2628-3/G1/T3A) |
| Thermal Detector Type |
VOx Uncooled Focal Plane Array (UFPA) |
| Thermal Resolution |
256 x 192 |
| Pixel Pitch |
12 µm |
| NETD |
Less than 40 mK (at 25°C, F1.0) |
| Thermal Focal Length |
3.6 mm |
| Thermal Field of View |
50° x 37.3° |
| IFOV |
3.33 mrad |
| Minimum Focus Distance (Thermal) |
0.5 m |
| Digital Zoom (Thermal) |
2x / 4x |
| Optical Sensor |
4MP 1/2.7-inch CMOS |
| Optical Resolution |
2688 x 1520 |
| Minimum Illumination |
~0.0089 Lux (F1.6, AGC ON) / 0 Lux with IR |
| Optical Focal Length |
~4.3 mm |
| Optical Field of View |
~84° x 43.1° |
| Wide Dynamic Range |
120 dB |
| Shutter Speed |
1 s to 1/100,000 s |
| White Light Illuminator |
~30 m, adjustable flashing |
| Temperature Alarm Range |
-20°C to 150°C, accuracy ±8°C |
| Smart VCA Rules |
Up to 8 (line crossing, intrusion, vehicle/human classification) |
| Smoke Detection |
Supported |
| Sun-Reflection Filter |
Supported |
| Local Storage |
microSD/SDHC/SDXC up to 256 GB, NAS, ANR |
| Protocols |
ONVIF Profiles S/G/T, ISAPI, Hik-SDK |
| Simultaneous Live-View Channels |
Up to 20 |
| User Access |
Up to 32 users across 3 roles |
| Thermal Detector Guarantee |
10 years |
| Estimated Lead Time |
~70 days |
Ideal Use Cases
Warehouse and Cold-Store Perimeters
The 256×192 thermal sensor detects body heat at the perimeter of large storage buildings regardless of lighting conditions, while vehicle and human classification VCA distinguishes delivery trucks from pedestrian intrusions, reducing unnecessary alerts during operational hours.
Industrial Fire and Hotspot Monitoring
Temperature exception alarms configured across point, area, and line rules monitor equipment surfaces and storage areas for overheating within the -20°C to 150°C range. Combined with smoke detection, this supports early-stage fire identification in plant rooms, workshops, and electrical switch areas.
Construction Site After-Hours Security
Thermal imaging identifies heat signatures in complete darkness across open construction sites without relying on lighting infrastructure that may not yet be installed. Up to 8 VCA rules can be set around equipment storage areas, site access points, and material laydown zones for targeted after-hours monitoring.
Data Centre and Server Room Safety
Continuous temperature monitoring across server racks and cooling infrastructure using the area and point rule types provides automated alerts when thermal thresholds are exceeded, supporting facilities management teams who need early warning of cooling failures or overloaded equipment before damage occurs.
Outdoor Loading Docks and Yard Entrances
The 4MP optical channel with 120 dB WDR captures vehicle detail during deliveries in bright or mixed lighting conditions, while the thermal layer maintains detection capability after hours. The white-light illuminator reaching approximately 30 m supports optical visibility at unmanned after-hours entry points.
Choosing the Right Model
- Choose this model if: Your project requires combined perimeter intrusion detection and thermal fire or hotspot monitoring with vehicle and human classification, and you need a 256×192 sensor resolution with smoke detection capability in a single bullet housing.
- Choose a different model if: Your application is standard optical CCTV without a thermal detection requirement, as a conventional 4MP or 8MP bullet camera will deliver higher optical image detail at significantly lower cost and without the extended lead time. Alternatively, if your site requires precision temperature measurement rather than exception alarms for safety monitoring, a dedicated industrial thermal measurement device would be more appropriate than this camera.
- Choose a different model if: Your project timeline does not allow for the approximately 70-day lead time and an equivalent camera with shorter availability is a higher priority than the 256×192 thermal resolution this model provides.
FAQs
- What is the lead time for the DS-2TD2628-3/QA?
This camera carries an approximately 70-day lead time. It is not a stocked off-the-shelf product and must be ordered specifically. Installers and project managers should factor this into procurement schedules well in advance of planned installation or commissioning dates, particularly on staged rollouts across multiple sites.
- How does the thermal imaging work in complete darkness or through smoke?
The thermal sensor detects infrared radiation emitted as heat from objects and people rather than reflected visible light. This means it operates independently of ambient lighting and can detect heat signatures through light smoke, fog, or dust where optical cameras would lose visibility. The 256×192 resolution at 12 µm pixel pitch provides sufficient detail to support VCA classification in these conditions.
- What is the temperature measurement accuracy of the DS-2TD2628-3/QA?
The camera monitors temperatures across a range of -20°C to 150°C with an accuracy of ±8°C. This level of accuracy is well suited to exception alarms and hotspot detection across equipment, storage areas, and perimeter zones. It is not a precision measurement instrument and alarm thresholds should be configured with sufficient margin above normal operating temperatures to avoid nuisance triggers.
- What VCA rules can be configured, and how many zones are supported?
Up to 8 VCA rules can be configured across the scene. Supported rule types include line crossing, intrusion detection, and deep-learning-based vehicle and human classification. This allows the camera to be set up with multiple independent detection zones covering different areas of a perimeter, loading area, or facility yard within a single camera view.
- Is smoke detection performed by the thermal sensor or the optical sensor?
Smoke detection on the DS-2TD2628-3/QA is a firmware-based function that analyses the thermal image channel for smoke-related heat patterns. The sun-reflection filter works alongside this to reduce false detections caused by sunlight glare on reflective surfaces such as metal roofing or glass panels, improving alarm reliability in outdoor daytime environments.
- What storage options are available for recorded footage?
The camera supports microSD, SDHC, and SDXC cards up to 256 GB for local recording, as well as NAS-based network storage. ANR (Automatic Network Replenishment) is also supported, allowing the camera to buffer footage locally during a network interruption and automatically upload it to the NAS once connectivity is restored, reducing the risk of footage gaps.
- Is the DS-2TD2628-3/QA compatible with third-party VMS platforms?
Yes. The camera supports ONVIF Profiles S, G, and T, along with ISAPI and the Hik-SDK. This provides compatibility with a broad range of third-party video management platforms used in commercial and industrial installations. Up to 20 simultaneous live-view connections and up to 32 user accounts across 3 permission roles are supported. Contact Security Wholesalers if you need to confirm compatibility with a specific VMS before specifying this camera on a project.
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