The DH-TPC-BF2221 is a compact hybrid bullet camera combining thermal imaging and visible-light sensors. It’s built for indoor/outdoor monitoring in total darkness—like perimeter entry points, storage yards, or small facility access control. With intelligent analytics (tripwire, intrusion, fire detection) and configurable alarm linkage (white light, speaker), it proactively protects small areas 24/7.
Key Features
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Dual Thermal + Visible Imaging — Captures heat signatures in darkness and clear visual detail with smart IR.
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Fire Detection & Alarm — Thermal sensitivity triggers early-stage alerts for heat anomalies.
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Smart Alarm Linkage — Automatically activates white light and speaker to warn intruders and capture snapshots.
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IVS Analytics at the Edge — Tripwire, intrusion, and abandoned-object detection right in the camera.
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High Thermal Sensitivity (<50 mK) — Shows subtle heat differences for improved detection accuracy.
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Rugged All-Weather Design — IP67-rated housing with lightning protection and wide temperature tolerance.
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Long-Range Thermal Detection — Detects human targets up to 292 m and vehicles up to 778 m.
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Integrated Storage & I/O — Built-in microSD recording (256 GB) and alarm input/output for standalone deployment.
Perfect For:
- Building entrances and perimeter gates
- Small warehouse or equipment yard monitoring
- Power station or telecom site access control
- Fire-prone locations needing early detection
- Loading bays and low-light security zones
Install Tips
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Thermal Lens Selection – Use 3.5 mm for wide area coverage, 7 mm for long-distance detection.
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Alarm Linked Deterrence – Position the white-light/speaker where alerts are visible/audible to intruders.
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Tripwire Setup – Configure virtual tripwire at choke points for better detection accuracy.
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Shadow Sensor Testing – Adjust sensitivity in thermal and visual channels to reduce false alarms from heat sources.
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Surge Protection – Use grounding and power conditioning for storm-prone areas.
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Appropriate Height – Mount at 3–4 m for balanced thermal and visible surveillance zones.
Downloads
Quick-Read Specs Card
| Feature |
Details |
| Thermal Resolution |
256 × 192 VOx, <50 mK sensitivity |
| Thermal Lens Options |
3.5 mm (50°×38°) or 7 mm (24°×18°) |
| Visible Lens Options |
4 mm (80°×45°) or 8 mm (40°×22°) |
| Visible Sensor |
2 MP 1/2.8″ CMOS |
| Night Vision – Visible |
Smart IR up to 50 m |
| Edge Analytics |
IVS: Tripwire, Intrusion, Fire detection, etc. |
| Alarm Linkage |
White light, speaker alerts + snapshots |
| Storage & I/O |
microSD up to 256 GB, 2/2 alarm I/O, BNC |
| Power Options |
DC 12 V, PoE, or ePoE |
| Weather/Rugged Rating |
IP67, –30 °C to +60 °C, 6 kV lightning rated |
Extra Info
Fire Detection
This system employs advanced thermal imaging technology to identify early signs of fire hazards by detecting abnormal heat build-up. Unlike traditional visible-light sensors, thermal imaging doesn't rely on smoke or open flames to trigger alerts, allowing for faster and more reliable detection—especially useful in environments where fires may smolder before becoming visible. This proactive capability significantly enhances safety by providing critical early warnings, potentially preventing damage or injury.
Thermal Sensitivity (<50 mK)
With a thermal sensitivity of less than 50 millikelvin (mK), the sensor is highly precise, capable of discerning even subtle temperature differences. This level of sensitivity allows for fine-grain detection of heat signatures, making the system ideal for:
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Human and vehicle detection in low-light or visually obstructed environments.
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Fire anomaly spotting long before visible signs emerge.
Such precision supports a wide range of safety, surveillance, and operational efficiency needs across industrial, commercial, and remote locations.
Alarm Linkage Options
The system offers configurable alarm linkage features, enabling automatic responses based on either thermal or visual triggers. Options include:
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White-light strobe activation for visual deterrence or emergency signaling.
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Pre-recorded or real-time voice alerts through an integrated speaker.
These alerts can be tailored to suit specific risk zones or operational protocols, helping ensure quick response and awareness during critical events.
Edge Analytics
The device features onboard Intelligent Video Surveillance (IVS) capabilities, meaning analytics are processed directly on the camera—without the need for a separate network video recorder (NVR). This edge-based approach offers several advantages:
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Reduced latency and bandwidth usage, as data is processed locally.
- Ideal for standalone or remote zones where IT infrastructure is minimal or absent.
- Enables smart functions such as line crossing, intrusion detection, and thermal event monitoring.
By embedding analytics directly into the device, the system provides smarter, faster decision-making closer to the source.
While the DH-TPC-BF2221 does not feature built-in AcuPick, it supports AcuPick search functions when connected to an AI-capable Dahua NVR. The camera sends AI metadata (e.g., face detection, people counting, perimeter classifications) that the NVR uses for smart filtering and playback search.
Benefits via AI NVR Integration:
- Search by human or vehicle presence
- Filter playback using traits like mask, gender, or clothing
- Skip irrelevant footage and jump to key events instantly
- Use AI-driven logs and smart snapshots from camera metadata
Q&A
Q: Can this detect fire early?
A: Yes—built-in thermal heat detection triggers alarms faster than visible-light sensors.
Q: Do I need an NVR for analytics?
A: No—IVS runs onboard; network storage is optional via microSD or NVR.
Q: How large is the coverage area?
A: Thermal detects humans up to ~292 m and vehicles up to ~778 m (7 mm lens).
Q: Do I need separate IR lighting?
A: No—the visible channel’s IR LED provides up to 50 m night range.
Q: Can I hook up external alarms?
A: Yes—there are 2 alarm input and 2 alarm output ports.
Q: What happens if the power fluctuates?
A: Supports ±15 % voltage tolerance and has 6 kV surge protection.
Q: What storage does it offer onboard?
A: Supports microSD cards up to 256 GB.
Q: Does it work in extreme weather?
A: Yes—rated IP67, operational from –30 °C to +60 °C.
