Product Overview
For operators responsible for large outdoor perimeters, the Hikvision DS-2TD4137T-9W combines a 384×288 thermal detector with a 4MP optical camera in a bi-spectrum PTZ speed dome designed for round-the-clock perimeter protection and fire prevention monitoring. The thermal channel delivers NETD of 35mK or less using a VOx UFPA detector with 17 micrometer pixel pitch, enabling detection of human presence and heat anomalies in complete darkness, smoke, or fog where standard cameras fail entirely. Equipped with deep learning algorithms for line crossing, intrusion, and region entrance and exit detection, the DS-2TD4137T-9W also supports fire and smoke detection and temperature exception alarms accurate to within plus or minus 2 degrees Celsius. Smart tracking modes including panorama tracking, event tracking, and multi-scene patrol tracking make it well suited to unmanned monitoring of critical infrastructure, industrial yards, power stations, and large fenced perimeters. Note that this product carries a 7-8 week lead time.
Key Capabilities
384×288 VOx Thermal Detector
The 17 micrometer VOx UFPA detector achieves NETD of 35mK or less, meaning it can resolve very small temperature differences across a scene. This sensitivity is essential for detecting people or warm equipment in conditions where optical cameras produce no usable image, including total darkness, dense fog, and heavy smoke.
Fire and Smoke Detection with Temperature Alarms
An onboard fire and smoke detection algorithm continuously analyses the thermal channel for combustion signatures, while the temperature exception alarm triggers automatically when a configured threshold is breached. Temperature measurement accuracy is within plus or minus 2 degrees Celsius or 2 percent of reading across a range of -20 degrees to 150 degrees Celsius, supporting fire prevention monitoring in factories, warehouses, and power stations.
Deep Learning Perimeter Protection
Line crossing, intrusion, and region entrance and exit detection are all powered by a deep learning algorithm, reducing nuisance alerts caused by animals, vegetation movement, or lighting changes. This makes the DS-2TD4137T-9W practical for unmanned perimeter deployments where alert accuracy directly determines response effectiveness.
Smart PTZ Tracking Modes
Three distinct tracking modes, panorama tracking, event tracking, and multi-scene patrol tracking, allow operators to configure automated coverage of large areas without continuous manual control. Event tracking locks onto detected targets automatically, while multi-scene patrol cycles through predefined positions across a wide perimeter zone.
4MP Optical Channel with Bi-spectrum Output
Alongside the thermal channel, a 4MP optical camera with a 1/1.8 inch progressive scan CMOS sensor provides visible light imagery for identification and evidentiary purposes. The bi-spectrum design outputs a combined 1920×1080 image, giving operators thermal detection capability alongside the colour and detail of a conventional optical feed from a single unit.
Hardened Outdoor Construction
IP66-rated weatherproofing and an operating temperature range of -40 degrees to 65 degrees Celsius make the DS-2TD4137T-9W suitable for exposed outdoor installations in harsh climates. The anti-corrosion housing, combined with Hikvision’s 10-year thermal detector guarantee, supports long deployment lifecycles in industrial and coastal environments.
Best For
- Critical Infrastructure Perimeters: Deep learning intrusion and line crossing detection combined with automated PTZ tracking enables continuous unmanned coverage of fenced boundaries around power stations, water treatment facilities, and substations.
- Industrial Fire Prevention: The temperature exception alarm and fire and smoke detection algorithm provide proactive monitoring of machinery, storage areas, and processing equipment where heat anomalies can indicate impending fire risk before visible flames appear.
- Border and Coastal Surveillance: The VOx thermal detector with NETD of 35mK or less detects human presence through darkness, sea haze, and fog across extended ranges where standard optical cameras are ineffective, supporting unattended remote site monitoring.
- Large Industrial Yards and Warehouses: Multi-scene patrol tracking and event tracking automate coverage across expansive outdoor storage and logistics areas, reducing the need for multiple fixed cameras to cover a single open zone.
- Harsh Climate Outdoor Deployments: With an operating range down to -40 degrees Celsius and IP66 weatherproofing, this speed dome remains operational in environments that would compromise standard PTZ or optical cameras.
Why Choose the DS-2TD4137T-9W
The DS-2TD4137T-9W addresses a monitoring requirement that a standard PTZ or fixed optical camera cannot satisfy: detecting human presence and thermal anomalies in conditions where visible light is absent or obscured. The 384×288 thermal detector with 17 micrometer pixel pitch and NETD of 35mK or less provides genuine detection sensitivity across darkness, fog, and smoke. The addition of fire and smoke detection algorithms with temperature measurement accurate to within 2 degrees Celsius or 2 percent means the unit serves a dual purpose as both a perimeter security camera and an industrial fire prevention sensor. Smart tracking modes automate coverage without operator intervention, while the 4MP optical channel provides visible identification alongside thermal detection. The 10-year thermal detector guarantee reduces long-term cost of ownership on what is a significant capital investment. Available at Security Wholesalers, this product is suited to operators with defined requirements for thermal bi-spectrum PTZ capability. Allow for a 7-8 week lead time when planning procurement.
Buyer Decision Tips
Buyer Tip 1 – Lead Time Planning: The DS-2TD4137T-9W carries a 7-8 week lead time. For project-based installations at industrial or critical infrastructure sites, confirm order placement well ahead of your installation schedule. Thermal bi-spectrum PTZ units are purpose-built products and are not typically available from stock.
Buyer Tip 2 – Thermal vs Optical Use Case: The thermal channel on the DS-2TD4137T-9W is optimised for detection and heat anomaly measurement, not identification. The 4MP optical channel provides the visible detail needed for evidentiary purposes. If your primary requirement is identification at long range rather than detection in darkness or smoke, a high-resolution optical PTZ may be more appropriate. Where both detection through obscured conditions and fire prevention monitoring are required together, this bi-spectrum configuration is the correct choice.
Key Features & Technical Specifications
| Product Model |
DS-2TD4137T-9W |
| Camera Type |
Bi-spectrum thermographic and optical PTZ speed dome |
| Thermal Detector Resolution |
384 x 288 |
| Output Image Resolution |
1920 x 1080 |
| Pixel Pitch |
17 micrometer |
| Detector Type |
VOx UFPA |
| NETD |
35mK or less (at 25 degrees Celsius, F# = 1.1) |
| Thermal Lens |
9.1mm focal length |
| Optical Channel Resolution |
4MP, 1/1.8 inch progressive scan CMOS |
| Digital Zoom |
Up to 8x |
| Temperature Measurement Range |
-20 degrees Celsius to 150 degrees Celsius (high-temperature mode available) |
| Temperature Measurement Accuracy |
Plus or minus 2 degrees Celsius or plus or minus 2% of reading |
| Thermal AGC Modes |
Linear, histogram, self-adaptive; DDE, 3D DNR |
| Smart Tracking |
Panorama tracking, event tracking, multi-scene patrol tracking |
| Perimeter Protection |
Line crossing, intrusion, region entrance and exit (deep learning algorithm) |
| Fire and Smoke Detection |
Supported via thermal channel algorithm |
| Electronic Image Stabilisation (EIS) |
Supported on thermal channel (note: conflicts with intelligent functions when active) |
| Weatherproofing |
IP66 |
| Operating Temperature |
-40 degrees Celsius to 65 degrees Celsius |
| Video Compression |
H.265+, H.264 |
| Local Storage |
MicroSD/SDHC/SDXC up to 256GB |
| Power Supply |
12V DC, PoE 802.3at |
| Dimensions |
304 x 104 x 98 mm |
| Weight |
Approximately 2.5 kg |
| Network Protocol |
ONVIF compliant |
| Thermal Detector Warranty |
10-year guarantee |
| Lead Time |
7-8 weeks |
Ideal Use Cases
Power Station and Substation Perimeters
Deep learning line crossing and intrusion detection on the thermal channel identifies unauthorised entry into high-voltage exclusion zones in complete darkness, while the temperature exception alarm monitors electrical equipment for heat anomalies indicating fault conditions.
Warehouse and Factory Fire Prevention
The fire and smoke detection algorithm combined with temperature measurement accurate to within 2 degrees Celsius allows early identification of combustion risk in storage racking, production equipment, and chemical handling areas before fire suppression systems are triggered.
Coastal and Border Monitoring
The VOx UFPA thermal detector with NETD of 35mK or less detects human movement through sea haze, fog, and rain across extended ranges. Multi-scene patrol tracking automates coverage of long unattended coastal approaches or border fence lines without continuous operator involvement.
Mining and Remote Industrial Sites
Operating in temperatures as low as -40 degrees Celsius within an IP66-rated anti-corrosion housing, the DS-2TD4137T-9W is engineered for outdoor deployment at remote sites exposed to extreme cold, dust, and airborne particulates where standard cameras cannot sustain performance.
Airport and Port Perimeter Security
Event tracking locks automatically onto detected intruders crossing defined perimeter zones, providing continuous PTZ follow-up on the optical channel for visual confirmation while the thermal channel maintains detection capability across the broader zone in low visibility conditions.
Oil, Gas, and Chemical Facility Monitoring
Temperature exception alarms configured to precise thresholds allow the DS-2TD4137T-9W to monitor pipelines, storage tanks, and processing equipment for thermal abnormalities. Combined with fire and smoke detection, the unit provides a dual-purpose sensor covering both intrusion and industrial hazard monitoring from a single mounting position.
Choosing the Right Model
- Choose this model if: Your deployment requires detection of people or heat anomalies through complete darkness, fog, or smoke across a large outdoor area, and you need both fire prevention temperature monitoring and deep learning perimeter protection from a single PTZ unit with automated tracking.
- Choose a different model if: Your primary requirement is long-range optical identification in good visibility conditions. A high-resolution optical PTZ or motorised varifocal camera will provide better image detail for identification at lower cost where thermal detection capability is not required.
- Choose a different model if: Your project timeline cannot accommodate a 7-8 week lead time. This is a purpose-built thermal bi-spectrum unit and is not stocked for immediate dispatch. If immediate delivery is essential, a standard optical PTZ or fixed thermal camera from available stock should be considered.
- Choose a different model if: Your site requires only basic perimeter detection without fire prevention or temperature measurement. A fixed thermal camera or standard deep learning optical camera will deliver perimeter protection at a significantly lower price point if the bi-spectrum and temperature measurement features are not required.
FAQs
- What does bi-spectrum mean on the DS-2TD4137T-9W?
Bi-spectrum means the unit contains 2 independent imaging sensors: a 384×288 thermal detector that measures heat signatures, and a 4MP optical CMOS camera that captures visible light imagery. Both channels are combined into a single 1920×1080 output, giving operators thermal detection for all-conditions monitoring alongside optical colour detail for visual identification from one device.
- How accurate is the temperature measurement on the DS-2TD4137T-9W?
Temperature measurement accuracy is within plus or minus 2 degrees Celsius or plus or minus 2 percent of the reading, whichever is greater. The measurement range covers -20 degrees Celsius to 150 degrees Celsius, with a high-temperature mode also available. This accuracy level supports industrial fire prevention monitoring and equipment thermal management applications.
- Can the DS-2TD4137T-9W detect fire automatically without operator monitoring?
Yes. An onboard fire and smoke detection algorithm analyses the thermal channel continuously and triggers a temperature exception alarm when configured thresholds are breached. This allows the unit to operate as an automated fire prevention sensor across warehouse, factory, and industrial storage environments without requiring a live operator to watch the feed.
- What tracking modes does the PTZ function support?
The DS-2TD4137T-9W supports 3 smart tracking modes: panorama tracking for broad area scanning, event tracking which automatically follows a detected target after an alarm is triggered, and multi-scene patrol tracking which cycles the PTZ through pre-configured positions. These modes can be used to automate coverage of large perimeters without continuous manual PTZ control.
- What is NETD and why does 35mK matter for perimeter detection?
NETD (Noise Equivalent Temperature Difference) measures how small a temperature difference the detector can resolve. A value of 35mK or less means the thermal detector on the DS-2TD4137T-9W can distinguish targets that are only 0.035 degrees Celsius warmer than their surroundings. This level of sensitivity enables reliable detection of people and vehicles in cold environments where body heat contrast against the background is minimal.
- Does the EIS on the thermal channel work alongside the intelligent detection features?
No. According to the product specification, Electronic Image Stabilisation (EIS) on the thermal channel conflicts with the intelligent functions, including line crossing and intrusion detection. If you are deploying the DS-2TD4137T-9W primarily for perimeter protection using its deep learning detection algorithms, EIS should not be enabled simultaneously on the thermal channel.
- What power options does the DS-2TD4137T-9W support and how is it typically installed?
The unit accepts 12V DC or PoE via IEEE 802.3at, which is the higher-power PoE+ standard. Given the 2.5kg weight and dimensions of 304x104x98mm, it is typically mounted on a wall bracket or pole at elevated positions overlooking the monitored perimeter. Confirm your PoE switch or injector supports 802.3at rather than standard 802.3af before installation.
- Where can the DS-2TD4137T-9W be purchased and what is the lead time?
The DS-2TD4137T-9W is supplied through Security Wholesalers and carries a 7-8 week lead time from order confirmation. It is a purpose-built thermal bi-spectrum PTZ unit and is not a stock item. Project planners should factor this lead time into installation schedules to avoid delays. Local storage of up to 256GB via MicroSD/SDXC is supported for sites without immediate NVR connectivity during commissioning.
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