Product Overview
Combining a 384 x 288 thermal module with a 1920 x 1080 optical sensor, the DS-2TD4237-25/V2 is a bi-spectrum PTZ speed dome built for perimeter defence and fire prevention at critical infrastructure sites. Featuring a built-in GPU that runs deep learning-based VCA, the camera can detect line crossing, intrusion, and region entry and exit events across the thermal channel with a high degree of accuracy, even in complete darkness or adverse weather. Equipped with a dynamic fire detection algorithm capable of identifying up to 10 simultaneous fire points, it is also suited to deployment at gas stations, recycling centres, chemical plants, and large warehouses where temperature anomaly monitoring is essential. It integrates a 37x optical zoom optical module with auto-adjusting IR up to 100 m, 360-degree continuous pan, and IP66 and TVS 6000V surge protection for demanding outdoor installation. This is a special order item with a lead time of 4 to 6 weeks.
Key Capabilities
Thermal Perimeter Detection
The 384 x 288 vanadium oxide uncooled focal plane array operates across an 8 to 14 micron waveband with NETD below 40mk, enabling the camera to detect human presence across wide perimeters regardless of lighting conditions or smoke interference.
Deep Learning VCA
The onboard GPU runs 4 VCA rule types including line crossing, intrusion, region entrance, and region exiting, with up to 8 simultaneous rules supported. This reduces nuisance alerts caused by environmental motion while maintaining detection accuracy at perimeter boundaries.
Fire Point Detection
The advanced fire detection algorithm dynamically identifies up to 10 fire points simultaneously using the thermal channel. This makes the DS-2TD4237-25/V2 suited to facilities where early ignition detection is critical, including chemical storage sites and waste processing centres.
Temperature Measurement
Supports 21 temperature measurement rules across 10 points, 10 regions, and 1 line, covering a range of -20°C to 150°C with temperature anomaly alarms. This enables monitoring of equipment heat signatures and early warning of overheating in industrial environments.
37x Optical Zoom PTZ
The optical module delivers a field of view from 65.6 degrees down to 2.46 degrees with 360-degree continuous pan, tilt from -5 to 90 degrees, 300 presets, 8 patrol scans, and pan speeds up to 200 degrees per second. This supports rapid repositioning across large sites from a single mounted unit.
Heavy-Duty Environmental Rating
Rated IP66 with TVS 6000V lightning and surge protection, operating reliably from -30°C to 60°C. This level of protection is essential for exposed mounting on perimeter poles, rooftops, or facility boundaries where voltage transients and weather extremes are a regular risk.
Best For
- Critical Infrastructure Perimeters: The thermal VCA with deep learning detects intruders across boundary lines at airports, power stations, and prisons even in zero-light or smoky conditions where optical cameras cannot operate effectively.
- Fire and Temperature Monitoring: The dynamic fire detection algorithm and 21-rule temperature measurement system make this unit suitable for gas stations, chemical plants, and large warehouses where heat anomaly detection must run continuously.
- Wide-Area Patrol Coverage: With 300 presets, 8 patrol routes, and continuous 360-degree pan, a single DS-2TD4237-25/V2 can cover coverage paths that would otherwise require multiple fixed cameras across open yards or industrial compounds.
- Harsh Outdoor Environments: IP66 rating combined with TVS 6000V surge protection and an operating temperature range of -30°C to 60°C makes this camera suitable for exposed outdoor mounting in coastal, tropical, or alpine conditions.
- Integrated Alarm-Linked Response: With 7 alarm inputs, 2 relay outputs, and alarm actions including preset positioning, SD card recording, FTP upload, and email linkage, this unit supports automated incident response workflows without additional controllers.
Why Choose the DS-2TD4237-25/V2
A standard PTZ camera with optical-only imaging cannot detect intruders in darkness, smoke, or dense foliage without illumination. The DS-2TD4237-25/V2 addresses this directly by pairing the thermal channel with a GPU-powered deep learning engine, delivering VCA detections that remain functional under conditions that would render a conventional optical sensor unreliable. The addition of fire point detection covering up to 10 simultaneous sources and a temperature measurement range of -20°C to 150°C extends the camera’s usefulness beyond security into operational safety monitoring. The 37x optical zoom, 300 presets, and 100 m auto-adjusting IR allow operators to patrol, investigate, and record across large sites with a single unit. Backed by TVS 6000V surge protection and IP66 weatherproofing, this is a long-service outdoor installation. Available through Security Wholesalers as a special order item, with a lead time of 4 to 6 weeks.
Buyer Decision Tips
Power Supply Requirement: The DS-2TD4237-25/V2 requires 24V AC power at up to 30W and does not support PoE. Budget for a suitable transformer and ensure the installation location has an appropriate power run. This is a key planning step that affects cabling, pole selection, and enclosure design before any other configuration decisions are made.
Temperature Measurement Accuracy: The thermal module provides temperature readings across a -20°C to 150°C range, but with an accuracy of plus or minus 8°C. This is appropriate for detecting anomalous heat signatures and fire points, but is not suitable for applications requiring precision industrial temperature measurement. If high-accuracy thermometry is the primary use case, confirm whether this tolerance is acceptable before ordering, particularly given the 4 to 6 week special order lead time.
Key Features & Technical Specifications
| Thermal Sensor |
Vanadium Oxide Uncooled Focal Plane Arrays, 384 x 288 resolution, 17 micron pixel pitch |
| NETD |
Less than 40mk (@25°C, F#=1.0) |
| Thermal Response Waveband |
8 micron to 14 micron |
| Thermal Field of View |
14.88° x 11.19° |
| Optical Sensor |
1/2.8″ Progressive Scan CMOS, max. resolution 1920 x 1080 |
| Optical Field of View |
65.6° to 2.46° (Wide to Tele) |
| Min. Illumination |
Colour: 0.05 lux (F1.2, AGC On); B/W: 0.01 lux (F1.2, AGC On) |
| WDR |
120dB |
| IR Distance |
Up to 100 m (auto-adjusted) |
| PTZ Movement |
Pan: 360° continuous; Tilt: -5° to +90° (auto flip) |
| Pan / Tilt Speed |
Pan: 0.1°/s to 200°/s; Tilt: 0.1°/s to 105°/s |
| Presets / Patrols |
300 presets; 8 patrol scans (up to 32 presets per patrol); 4 pattern scans |
| Fire Detection |
Dynamic fire point detection, up to 10 fire points simultaneously |
| Temperature Measurement |
Range: -20°C to 150°C; Accuracy: ±8°C; 21 rules (10 points, 10 regions, 1 line) |
| VCA |
Line crossing, intrusion, region entrance, region exiting; up to 8 rules |
| Video Compression |
H.265 (Main Profile), H.264 (Baseline/Main/High Profile) |
| Alarm I/O |
7-ch alarm input; 2-ch relay output |
| Local Storage |
Built-in Micro SD/SDHC/SDXC slot, up to 64GB |
| Power |
24V AC ±25%; 30W consumption |
| Protection |
IP66; TVS 6000V lightning, surge, and voltage transient protection |
| Operating Temperature |
-30°C to 60°C; 90% humidity or less |
| Dimensions / Weight |
305 mm x 185 mm x 163 mm; approx. 3.9 kg |
Ideal Use Cases
Airport and Prison Perimeters
The thermal VCA with deep learning line crossing and intrusion detection operates regardless of lighting, providing boundary monitoring across large secure perimeters without requiring supplementary illumination that could create compliance or operational issues.
Power Stations and Utilities
Temperature anomaly alarms and the 21-rule measurement system allow monitoring of electrical switchgear and transformer areas where heat buildup can indicate equipment failure before a visible incident occurs, supporting preventive intervention.
Chemical Plants and Gas Stations
Dynamic detection of up to 10 simultaneous fire points through the thermal channel enables early-stage ignition alerts in environments where flammable materials are stored or handled, well before flames become visible to optical cameras.
Large Warehouses and Recycling Centres
The combination of patrol scanning across 300 presets with 8 patrol routes and continuous thermal monitoring makes it practical to cover extended warehouse floor areas and open recycling yards with a single PTZ unit rather than arrays of fixed cameras.
Construction Sites and National Parks
The -30°C to 60°C operating range and TVS 6000V surge protection allow exposed installation in remote or open environments, while the thermal intrusion detection reduces false triggers from wind-blown vegetation that would affect motion-based optical systems.
Farms and Rural Infrastructure
360-degree continuous pan with up to 200 degrees per second and auto-adjusting 100 m IR allows operators to cover large rural properties at night without supplementary lighting, with alarm-linked preset positioning that snaps the camera to pre-defined investigation points on trigger.
Choosing the Right Model
- Choose this model if: Your application requires simultaneous perimeter intrusion detection and fire or heat anomaly monitoring from a single PTZ unit, particularly at critical infrastructure sites where thermal imaging must function in darkness, smoke, or challenging weather conditions.
- Choose a different model if: Your site requires only standard optical PTZ coverage without thermal detection, or if your installation is PoE-based only and cannot support a dedicated 24V AC power supply. A standard optical PTZ or a fixed thermal camera may be more cost-appropriate for those scenarios.
- Choose a different model if: Your application requires high-precision temperature measurement with accuracy tighter than ±8°C. The thermal module on this unit is calibrated for anomaly detection and fire prevention, not precision industrial process monitoring.
FAQs
- What is the difference between the thermal channel and the optical channel on this camera?
The thermal module uses a 384 x 288 vanadium oxide sensor to detect heat signatures emitted by people, vehicles, and objects, operating independently of visible light. The optical module is a 1920 x 1080 CMOS camera with 37x zoom and 100 m IR that captures visible detail once a target is identified. Both streams can be recorded simultaneously and viewed independently through the VMS or web interface.
- Does the DS-2TD4237-25/V2 support PoE?
No. This camera requires 24V AC power at up to 30W. PoE infrastructure is not compatible. A dedicated power transformer rated for 24V AC must be installed at or near the camera location. This is an important consideration when planning pole or rooftop mounting at sites without existing 24V AC circuits.
- How accurate is the temperature measurement function?
The thermal module measures temperatures from -20°C to 150°C with an accuracy of plus or minus 8°C. This level of accuracy is suited to detecting heat anomalies, identifying potential fire ignition points, and monitoring equipment hotspots in broad terms. It is not appropriate for applications where temperature readings need to be precise to within 1 or 2 degrees.
- How many fire points can the camera detect at once?
The dynamic fire detection algorithm can identify up to 10 simultaneous fire points within the thermal camera’s field of view. Detection is performed on the thermal channel using the onboard GPU, which also runs the deep learning VCA rules. Alarm actions can be configured to trigger preset positioning, SD card recording, relay output, or email notification on fire detection.
- What VCA rules are available on the thermal channel?
4 rule types are supported: line crossing, intrusion, region entrance, and region exiting. Up to 8 individual VCA rules can be configured simultaneously. Detection is based on a deep learning algorithm running on the built-in GPU, which is designed to reduce false triggers from non-human thermal signatures such as animals or passing vehicles at the boundary of detection zones.
- Can this camera be mounted outdoors in extreme weather conditions?
Yes. The DS-2TD4237-25/V2 carries an IP66 rating and is rated to operate from -30°C to 60°C. It also incorporates TVS 6000V lightning protection and surge and voltage transient protection, making it suitable for exposed outdoor mounting on perimeter poles or rooftops in locations prone to electrical storms, coastal salt spray, or significant temperature variation.
- What is the lead time for the DS-2TD4237-25/V2?
This is a special order item. The estimated lead time is 4 to 6 weeks from the date of order. Buyers should factor this into project timelines, particularly for staged installations or commissioning deadlines. Confirm current availability with Security Wholesalers before placing an order if the delivery schedule is time-sensitive.
- What recording and integration options does this camera support?
The camera supports H.265 and H.264 video compression with simultaneous thermal and optical streams. It includes a built-in Micro SD card slot for up to 64GB of local storage, 7-ch alarm input, 2-ch relay output, RS485 control, ONVIF Profile S/G/T compatibility, and ISAPI and Hikvision SDK integration. Up to 20 simultaneous live view connections are supported, with access managed across 3 user permission levels.
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