By Dahua

Dahua TPC-BF1241-S2 4MP Thermal Hybrid Bullet Camera with Smoking Detection

SKU: TPC-BF1241-S2

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  • True 256x192 thermal imaging reads heat signatures in total darkness, fog, and haze
  • Dual-spectrum design pairs thermal detection with a 4MP visible lens for identification
  • Detect people and vehicles up to 417m — day or night
  • IP67 weatherproof housing rated for harsh outdoor environments
  • IR illumination reaches 30m for clear visible-light night vision
  • PoE or 12VDC power; Micro SD card support up to 256G
  • H.265 compression cuts bandwidth and storage costs

Details

Dual-Spectrum Thermal & Visible Imaging Architecture

TPC-BF1241-S2 is a thermal network mini hybrid bullet camera designed for perimeter protection, heat monitoring, and intelligent video surveillance. It combines a 256 × 192 vanadium oxide uncooled focal plane detector with a 4 MP progressive-scan CMOS visible channel, allowing operators to review both thermal information and visible scene details from one compact camera.

Optical Lens Configurations & Wireless Options

The product family provides selectable lens configurations for different monitoring distances and scene layouts. Depending on the model variant, the thermal lens is available in 3.5 mm, 7 mm, or 10 mm, while the visible-light lens is available in 4 mm, 8 mm, or 12 mm. Wi-Fi is available on designated model variants only and should be selected according to the ordering model.

Intelligent Video Analytics & Multi-Spectrum Fusion

For intelligent monitoring, the camera supports heat detection, tripwire, intrusion, cold and hot spot tracing, human and vehicle classification, smoking detection, and call detection. Thermal and visible channels can be fused using three image fusion modes, while 18 color palettes help operators review thermal scenes in different visual presentations.

Hardware Deployment, Active Deterrence & Environmental Ingress

With PoE and 12 VDC ±20% power options, built-in white light and audio alarms, Micro SD storage support up to 256 GB, and IP67 protection, TPC-BF1241-S2 is suited to factories, parking areas, villas, perimeter zones, and other small to medium monitoring scenes.

Specification

Thermal
Detector Type Vanadium oxide uncooled focal plane detector
Max. Resolution 256 (H) × 192 (V)
Pixel Pitch 12 μm
Spectral Range 8 μm–14 μm
Thermal Sensitivity (NETD) < 40 mK (@f/1.0, 25 Hz, 300 K)
Field of View 3.5 mm: H: 50.6°; V: 37.8°
7 mm: H: 24°; V: 18°
10 mm: H: 17.3°; V: 13.1°
Close Focus Distance 3.5 mm: 0.5 m (1.64 ft)
7 mm: 1 m (3.28 ft)
10 mm: 2 m (6.56 ft)
Detection Distance① 3.5 mm: Vehicle: 449 m (1,473.10 ft);
Human: 146 m (479.00 ft)
7 mm: Vehicle: 897 m (2,942.91 ft);
Human: 292 m (958.01 ft)
10 mm: Vehicle: 1,282 m (4,206.04 ft);
Human: 417 m (1,368.11 ft)
Recognition Distance② 3.5 mm: Vehicle: 110 m (360.89 ft);
Human: 38 m (124.67 ft)
7 mm: Vehicle: 220 m (721.78 ft);
Human: 75 m (246.06 ft)
10 mm: Vehicle: 314 m (1,030.18 ft);
Human: 107 m (351.05 ft)
Identification Distance③ 3.5 mm: Vehicle: 56 m (183.73 ft);
Human: 19 m (62.34 ft)
7 mm: Vehicle: 111 m (364.17 ft);
Human: 38 m (124.67 ft)
10 mm: Vehicle: 159 m (521.65 ft);
Human: 54 m (177.17 ft)
Aperture F1.0
Digital Detail
Enhancement (DDE)
Yes
Digital Zoom 16 levels
AGC Auto; Manual
Noise Reduction 2D NR; 3D NR
Image Flip 90°; 180°; 270°
Color Palettes 18 (white hot/black hot/fusion/rainbow/golden autumn/midday/iron red/amber/jade/sunset/icefire/painting/pomegranate/emerald /spring/summer/autumn/winter)
Fusion Mode 3 (Warm color; Cool color; Ironred)
Visible
Image Sensor 1/2.7'' CMOS
Max. Resolution 2336 (H) × 1752 (V)
Pixel 4 MP
Electronic Shutter Speed 1/30,000 s–1 s
Min. Illumination Color: 0.05 lux
Black & white: 0.005 lux
0 lux (IR on)
IR Illumination Distance 30 m (98.43 ft)
IR Illuminator On/Off Control Auto; Manual
Aperture 4 mm: F1.6
8 mm: F2.0
12 mm: F2.0
Field of View 4 mm: H: 71.2°; V: 52°
8 mm: H: 33.4°; V: 25°
12 mm: H: 22°; V: 16.6°
Focus Control Fixed
Close Focus Distance 4 mm: 1 m (3.28 ft)
8 mm: 2.5 m (8.2 ft)
12 mm: 2.5 m (8.2 ft)
Day/Night Auto (ICR); Color; B/W
BLC Yes
WDR DWDR
HLC Yes
White Balance Auto; Manual; Indoor; Outdoor; Tracking; Street lamp; Natural
AGC Auto; Manual
Noise Reduction 2D NR; 3D NR
S/N Ratio ≥55 dB
Region of Interest (RoI) Yes
Image Flip 90°; 180°; 270°
Exposure Compensation Yes
Intelligence
General Intelligence Tripwire; Intrusion
Advanced Intelligence Heat Detection & Alarm
Cold & Hot Spot Trace
Human & Vehicle Classification
Smoking Detection
Call Detection
Video and Audio
Video Compression H.265; H.264; H.264H; MJPEG
Resolution Thermal:
Main Stream: 1280 × 960 (1.3M); XVGA (1024 × 768);
VGA (640 × 480); 256 × 192; 1280 × 960 (by default)
Sub Stream: VGA (640 × 480); 256 × 192; 256 × 192 (by default)
Visual:
Main Stream: 2336 × 1752; 1080p (1920 × 1080); 720p (1280 × 720); D1 (704 × 576); 2336 × 1752 (by default)Sub Stream: 720p (1280 × 720); D1 (704 × 576); CIF (352 × 288); 352 × 288 (by default)
Frame Rate Thermal
50 Hz: (main stream) 1 fps–25 fps adjustable, 25 fps by default; (sub stream) 1 fps–25 fps adjustable, 15 fps by default
60 Hz: (main stream) 1 fps–30 fps adjustable, 30 fps by default; (sub stream) 1 fps–30 fps adjustable, 15 fps by default
Visual
50 Hz: (main stream) 1 fps–25 fps adjustable, 25 fps by default; (sub stream) 1 fps–25 fps adjustable, 15 fps by default
60 Hz: (main stream) 1 fps–30 fps adjustable, 30 fps by default; (sub stream) 1 fps–30 fps adjustable, 15 fps by default
Audio Compression G.711a; G.711mu; PCM
Network
Protocol HTTPS; HTTP; TCP; ARP; RTSP; RTP; UDP; RTCP; SMTP; FTP; DHCP; DNS; DDNS; PPPOE; IPv4/v6; SNMP; QoS; UPnP; NTP
Edge Storage Micro SD card (256 G)
Interoperability ONVIF; CGI; DaHua SDK
Browser IE: IE 8 and later
Google: 42 and earlier
Firefox: 42 and earlier
User/Host 10
Security Authorized username and password; attached MAC address; encrypted HTTPS; IEEE 802.1x; controlled network access
Port
Network 1 × RJ-45 (10/100 Base-T)
Audio Input 1
Audio Output 1
Alarm Input 1
Alarm Output 1
RS-485 1 pair
Wi-Fi Optional Standard No.: 802.11b/g/n(1x1)
Frequency: 2.4 GHz
Transmission rate: 150 Mbps
Transmission distance: 150 m (no shield, no disturbance)
Transmission power (Max.): at fc +/-22 MHz -20 dBr; at fc +/-40 MHz -28 dBr; at fc > +/-60 MHz -45 dBr
Power
Power Supply 12 VDC ± 20%; PoE
Power Consumption Basic: <4.5 W (12 VDC, LED off); 4.8 W (PoE)
Max: <10.1 W (12 VDC, LED on, heater on); 12.3 W (PoE)
Environment
Operating Temperature –30 °C to +60 °C (–22 °F to +140 °F)
Storage Temperature –30 °C to +70 °C (–22 °F to ﹢158 °F)
Operating Humidity ≤95%
Protection IP67
Structure
Product Dimensions 205.5 mm × 90.4 mm × 90.1 mm (8.09'' × 3.56'' × 3.55'') (L × W × H)
Packaging Dimensions 279 mm × 187 mm × 138 mm (10.98'' × 7.36'' × 5.43'')
(L × W × H)
Net Weight ≤ 0.9 kg (1.98 lb)
Gross Weight ≤ 1.3 kg (2.87 lb)
Heat Detection Distance
3.5 mm 45 m (147.64 ft)
7 mm 86 m (282.15 ft)
10 mm 123 m (403.54 ft)
Perimeter Protection Distance
3.5 mm Distance (Human) 24.5 m (80.38ft)
3.5 mm Distance (Vehicle) 72.5 m (237.86 ft)
7 mm Distance (Human) 49 m (160.76 ft)
7 mm Distance (Vehicle) 146.5 m (480.64 ft)
10 mm Distance (Human) 70 m (229.66ft)
10 mm Distance (Vehicle) 209 m (685.70 ft)

FAQ

What does the TPC-BF1241-S2 camera combine?

It combines a thermal imaging channel and a visible-light channel. The thermal channel uses a 256 × 192 vanadium oxide uncooled focal plane detector, while the visible channel uses a 4 MP progressive-scan CMOS sensor.

Which lens configurations are available?

The TPC-BF1241-S2 family includes 3.5 mm, 7 mm, and 10 mm thermal lens options paired with 4 mm, 8 mm, and 12 mm visible-light lens options, depending on the ordering model. Please select the exact variant according to the required monitoring distance and scene layout.

Does every version include Wi-Fi?

No. Wi-Fi is available only on designated Wi-Fi model variants. The exact ordering model should be checked before purchase when wireless connectivity is required.

What intelligent functions are supported?

The camera supports heat detection, tripwire, intrusion, cold and hot spot tracing, human and vehicle classification, smoking detection, and call detection. The applicable function and operating conditions should be confirmed for the intended system configuration.