Product Overview
Where standard PTZ cameras fall short in darkness, smoke, or demanding industrial conditions, the DS-2TD4228T-10/S2 brings together a thermal imaging module and a 4MP optical PTZ in a single bi-spectrum speed dome built for critical-environment deployment. Featuring a 256 x 192 VOx uncooled thermal sensor alongside a 32x optical zoom lens (4.8-153mm), it delivers both wide-area thermal detection and high-resolution visual identification from the one housing. The thermography-grade temperature measurement spans -20°C to 550°C with an accuracy of ±2°C or ±2%, making it suited to monitoring electrical switchgear, transformers, boilers, and other high-temperature industrial processes rather than perimeter security alone. It also includes fire and smoke detection algorithms, perimeter protection rules (line crossing, intrusion, region entry and exit), and smart PTZ tracking that links thermal triggers to optical follow-up. Rated IP66 and rated to operate between -40°C and +70°C, this speed dome is engineered for exposed outdoor installations in harsh conditions.
Key Capabilities
Thermography-Grade Temperature Measurement
The DS-2TD4228T-10/S2 measures temperatures from -20°C to 550°C with an accuracy of ±2°C or ±2%. This makes it genuinely useful for monitoring overheating equipment such as transformers, furnace doors, and switchgear, not just triggering a basic heat alarm.
32x Optical Zoom for Long-Range Identification
The 4MP optical module delivers a 32x optical zoom range from 4.8mm to 153mm, covering a wide field of view of approximately 58.8° x 34.4° down to a narrow 2.18° x 1.2°. This allows security operators to zoom in for positive identification while the thermal channel handles initial detection.
Fire and Smoke Detection Algorithms
On-board fire detection and smoke detection algorithms analyse the thermal stream for early signs of combustion. Combined with temperature exception alarms, this gives industrial sites and fire-prone outdoor areas an automated first line of defence before flames become visible to optical cameras.
360° PTZ with Smart Tracking
Continuous 360° pan with tilt from -5° to +90° and preset speeds up to approximately 240°/s (pan) and 200°/s (tilt). Smart tracking modes include panorama tracking, event tracking, and multi-scene patrol tracking, allowing the camera to respond automatically to thermal or perimeter alarm events.
Thermal and Optical Picture-in-Picture Linkage
The camera supports picture-in-picture overlay, displaying the thermal image within the optical stream simultaneously. This dual-view capability allows monitoring staff to assess both heat signatures and visual context on a single display, improving situational awareness at unmanned or remote sites.
IP66, Wide Temperature Rating, and Surge Protection
Rated IP66 for dust and water ingress resistance, the unit is also rated to operate from -40°C to +70°C ambient temperature. Built-in surge and lightning protection adds resilience for exposed perimeter and outdoor industrial mounting positions where electrical transients are a risk.
Best For
- Power Substations and Electrical Infrastructure: The 550°C temperature measurement range and ±2°C accuracy allow monitoring of transformers, switchgear, and busbars for thermal runaway before failure occurs.
- Industrial Process Monitoring: Refineries, chemical plants, and manufacturing facilities where high-temperature processes need continuous oversight benefit from the thermography-grade accuracy this model provides over standard security thermal cameras.
- Fire-Risk Outdoor Areas: Timber yards, fuel storage, and waste facilities where early fire and smoke detection from the on-board algorithms can trigger alerts before flames are established.
- Critical Infrastructure Perimeters: Airports, water treatment facilities, and utility compounds where the combination of line crossing, intrusion detection, and smart PTZ tracking provides automated response to after-hours entry events in any lighting condition.
- Remote Unmanned Sites: Mining camps, rail infrastructure, and remote power generation assets where automated temperature alarms, fire detection, and power-off memory presets allow the camera to operate and recover without manual intervention.
Why Choose the DS-2TD4228T-10/S2
The DS-2TD4228T-10/S2 is the thermography-grade variant in this bi-spectrum speed dome range. The key distinction from the base DS-2TD4228-10/S2 is the temperature measurement ceiling: this model measures accurately up to 550°C with ±2°C or ±2% accuracy, compared to 150°C and ±8°C on the security-focused sibling. That difference matters greatly in industrial environments where overheating equipment regularly exceeds 150°C and where an 8°C error margin is insufficient for process monitoring decisions. On top of thermography performance, the 32x optical zoom allows visual confirmation of detected heat events at range, and the 120dB WDR optical module handles challenging lighting at industrial sites. Up to 300 PTZ presets and patrol tracking mean the camera can cover multiple monitoring points on a scheduled or event-triggered basis. Available through Security Wholesalers, the DS-2TD4228T-10/S2 is supported by the Hikvision SDK and ONVIF for integration into existing VMS platforms.
Buyer Decision Tips
Thermography vs Security Variant: If your application only requires perimeter intrusion detection and early fire warning at temperatures below 150°C, the DS-2TD4228-10/S2 (without the “T”) covers that at lower cost. Choose the DS-2TD4228T-10/S2 specifically when you need accurate temperature readings up to 550°C, such as for monitoring electrical switchgear, boilers, furnaces, or other high-temperature industrial equipment where the ±2°C accuracy of this model is operationally required.
Network and Integration Planning: This camera supports ONVIF and the Hikvision SDK, but full smart tracking, temperature alarm rules, and fire detection configuration typically require Hikvision’s iVMS-4200 software or a compatible Hikvision NVR. Confirm your VMS or recorder supports bi-spectrum PTZ management before installation. RS-485 is available for legacy integration. Local microSD storage and NAS support provide redundancy for remote sites with unreliable network connectivity.
Key Features & Technical Specifications
| Model |
DS-2TD4228T-10/S2 |
| Thermal Sensor |
256 x 192 VOx uncooled FPA, 12 µm pixel pitch, NETD ≤ 35 mK (@25°C, F1.0) |
| Thermal Lens |
10 mm fixed, field of view approximately 18.1° x 13.6° (H x V) |
| Thermal Digital Zoom |
x2, x4, x8. Minimum focusing distance approximately 1.5 m |
| Optical Sensor |
4MP (2688 x 1520) 1/2.8″ progressive scan CMOS |
| Optical Zoom |
32x optical (4.8-153 mm), aperture F1.2-F4.4 |
| Optical Field of View |
Wide end: approximately 58.8° x 34.4°. Tele end: approximately 2.18° x 1.2° |
| Low Light Sensitivity |
Colour: approximately 0.05 lux. Black and white: approximately 0.01 lux (with AGC) |
| WDR |
120 dB |
| IR Illumination |
Up to approximately 100 m. IR angle and intensity auto-adjusted |
| Temperature Measurement |
-20°C to 550°C. Accuracy: ±2°C or ±2% |
| PTZ Pan / Tilt |
Pan: 360° continuous. Tilt: -5° to +90° with auto-flip. Pan preset speed up to approximately 240°/s, Tilt up to approximately 200°/s |
| Presets / Patrol |
Up to 300 presets, pattern, patrol, panorama scan, tilt scan. Power-off memory supported |
| Smart Detection |
Line crossing, intrusion, region entry/exit, fire detection, smoke detection, temperature exception alarm, smart tracking (panorama, event, multi-scene patrol) |
| Video Compression |
H.265+, H.265, H.264+, H.264, MJPEG. Up to 25/30 fps (50Hz/60Hz) |
| Network and Interfaces |
ONVIF, Hikvision SDK, HTTP, HTTPS, IPv4/IPv6. RS-485. MicroSD local storage. NAS support. Alarm inputs/outputs |
| Environmental Rating |
IP66. Operating temperature -40°C to +70°C. Surge and lightning protection |
| Physical |
Approximately 305 x 185 x 163 mm. Weight approximately 3.9 kg. Power consumption up to approximately 30 W |
Ideal Use Cases
Power Substation Monitoring
The 550°C temperature ceiling and ±2°C accuracy allow this camera to flag overheating transformers, circuit breakers, and cabling before insulation failure. The 32x optical zoom provides visual confirmation without requiring staff to approach live equipment.
Chemical and Refinery Perimeters
Fire detection algorithms and smoke detection, combined with perimeter protection rules including line crossing and region entry, provide automated alert coverage for high-consequence sites where after-hours intrusion and fire risk both need to be managed from a single PTZ position.
Timber Yards and Waste Facilities
Combustible open-air stockpiles present sustained fire risk. The on-board fire and smoke detection algorithms combined with the thermal module allow the DS-2TD4228T-10/S2 to detect hotspots before flames are visible, triggering alarms without requiring operator attention 24 hours a day.
Airport and Port Perimeters
360° continuous pan coverage with smart event tracking and up to 300 configurable presets allows a single DS-2TD4228T-10/S2 unit to patrol multiple fence-line sectors and respond automatically to intrusion detection events, covering vehicle detection out to approximately 240 m and people detection to approximately 80 m.
Remote Mining and Energy Sites
Power-off memory returns the camera to its last patrol position after supply interruptions. MicroSD and NAS storage provide local buffering where network connectivity is intermittent. The -40°C lower operating limit suits remote installations in cold or variable climates.
Rail Yards and Transport Infrastructure
Harsh outdoor environments with variable lighting, dust, and weather are handled by the IP66 rating and -40°C to +70°C operating range. Thermal detection allows monitoring of vehicle hotspots on rolling stock or machinery while the 32x optical zoom enables identification of personnel or vehicles across extended yard areas.
Choosing the Right Model
- Choose this model if: Your application involves monitoring high-temperature industrial processes, electrical equipment, or machinery where accurate thermography readings up to 550°C with ±2°C or ±2% accuracy are operationally required, or where fire and smoke detection with perimeter protection in a single PTZ housing is the goal.
- Choose a different model if: Your requirement is limited to standard perimeter intrusion detection and early fire warning at temperatures below 150°C. The security-oriented variant of this speed dome covers those use cases with lower cost, as the thermography-grade accuracy of the T variant will not provide additional benefit for general perimeter-only applications.
- Choose a different model if: You need a static camera for a fixed point of interest rather than area coverage. A fixed thermal camera with a wider thermal field of view would cover more ground per unit at a single observation point, while this PTZ is better suited to applications requiring active patrol, tracking, and multi-preset monitoring across a large area.
FAQs
- What is the difference between the DS-2TD4228T-10/S2 and the DS-2TD4228-10/S2?
The “T” in the model number designates the thermography-grade variant. This model measures temperatures up to 550°C with an accuracy of ±2°C or ±2%. The non-T version measures up to 150°C with an accuracy of ±8°C and is oriented toward perimeter security. Choose the T variant when you need accurate readings for industrial equipment monitoring rather than general heat anomaly detection.
- Can the camera detect a fire before flames are visible?
Yes. The on-board fire detection and smoke detection algorithms analyse the thermal stream for early-stage combustion indicators. Combined with temperature exception alarms triggered by the thermal module, the system can generate alerts based on heat signatures and smoke before visible flames are detected by the optical channel.
- How accurate is the temperature measurement at high temperatures?
The DS-2TD4228T-10/S2 measures temperatures from -20°C to 550°C with an accuracy of ±2°C or ±2%, whichever is the greater value at the measured temperature. This level of accuracy is suited to industrial applications such as monitoring transformers, boilers, or furnace surfaces where meaningful thermal trend data is required.
- What is the optical zoom range and how far can it identify people or vehicles?
The optical module provides 32x optical zoom from a focal length of 4.8mm to 153mm. The field of view narrows from approximately 58.8° x 34.4° at the wide end to approximately 2.18° x 1.2° at full tele. VCA detection ranges under good conditions are approximately 80 m for people and 240 m for vehicles on the thermal channel.
- Does the camera work in complete darkness?
The thermal module detects heat signatures in total darkness, rain, dust, and light smoke regardless of visible light. The optical module includes IR illumination up to approximately 100 m with auto-adjusted intensity. Low-light optical sensitivity is approximately 0.05 lux (colour) and 0.01 lux (black and white), with 120dB WDR handling high-contrast scenes during daylight.
- Can the camera automatically track a detected intruder?
Yes. Smart tracking modes include panorama tracking, event tracking, and multi-scene patrol tracking. When a perimeter protection rule such as line crossing or intrusion detection is triggered, the optical PTZ channel can be configured to follow the detected subject automatically while the thermal channel continues to monitor the broader scene.
- What happens if the camera loses power and restarts?
The DS-2TD4228T-10/S2 supports power-off memory, which stores the last active preset or patrol configuration. On restoration of power the camera returns to its previous position and resumes its patrol or preset sequence without requiring manual operator intervention. This is particularly relevant for remote or unmanned site installations.
- Is the DS-2TD4228T-10/S2 suitable for harsh outdoor industrial environments?
Yes. The camera is IP66 rated for dust and water protection, operates across a wide ambient temperature range of -40°C to +70°C, and includes built-in surge and lightning protection. These specifications make it appropriate for exposed outdoor mounting positions on perimeter fences, poles, or building walls at industrial, mining, and utility sites. It is part of the Security Wholesalers Hikvision thermal PTZ range and supported by local distribution.
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