TPC-DF1241-LB3F4-DW-S8-V1 - is a Eureka series thermal dome IP camera designed for intelligent video surveillance and early fire detection. It combines a 256×192 px VOx thermal sensor with a 4 MP (2688×1520) optical camera , equipped with a 3.5 mm thermal lens and a 4 mm visible lens , for precise control of sensitive areas. Thanks to thermal and visible image fusion , Xinghan artificial intelligence , people and vehicle classification , smoke, heat and flame detection and the integrated dual microphone , it guarantees high safety standards. MicroSD recording up to 256 GB , PoE power supply and IP67 protection for professional installations in outdoor environments complete the equipment. Dahua
TPC-DF1241-LB3F4-DW-S8-V1 | POE THERMAL DOME IP CAMERA WITH 4mm FIXED LENS - 3.5mm THERMAL LENS - 4 MEGAPIXELS - ARTIFICIAL INTELLIGENCE

The Dahua TPC-DF1241-LB3F4-DW-S8-V1 is a professional thermal IP dome camera from the Eureka series, designed for advanced perimeter protection and early fire detection. It combines a 256×192 px VOx thermal sensor with a 4 MP optical camera , equipped with a 3.5 mm thermal lens and 4 mm visible lens , offering detailed images and precise thermal analysis. Xinghan AI technology enables intrusion detection, line crossing, people and vehicle classification, smoke and heat detection with false alarm reduction. The features also include a built-in dual microphone , MicroSD recording up to 256 GB , PoE power supply and IP67 certification for outdoor installations.
Main specifications:
- Thermal resolution 256×192
- 4 MP optical camera (2688×1520)
- 3.5mm thermal optics
- Visible optics 4 mm
- Integrated Xinghan AI
- Fire and smoke detection
- Built-in dual microphone
- MicroSD up to 256 GB
- PoE 802.3af
- IP67 protection
Further details
The camera integrates a 4mm F1.6 visible lens with 4 MP (2688×1520) resolution , designed to provide detailed images and optimal coverage of the monitored areas, with an 88° horizontal field of view ideal for professional security applications.
The 3.5mm F1.0 thermal optics enables accurate detection of temperature changes and hot spots, offering a 50.6° field of view and ensuring reliable monitoring even in total darkness.
✅ Built-in dual microphone:
Technical data sheet
| TPC-DF1241-LB3F4-DW-S8-V1 |
| Technical features |
| Uncooled vanadium oxide thermal planar focal plane sensor |
| 1/1.8" visible CMOS sensor with progressive scan |
| 256 x 192" thermal resolution |
| 4 MP visible resolution with 2688 x 1520 maximum |
| 12 µm thermal pitch |
| 8 µm to 14 µm spectral range |
| Thermal sensitivity NETD ≤25 mK@f/1.0 |
| Lens 3.5 mm thermal at F1.0 |
| Lens 4 mm visible at F1.65 |
| Thermal field of view of H: 50.6° / V: 37.8° thermal field of view of H: 50.6° / V: 37.8° thermal field of view of V: 37.8 |
| H visible field of view: 88.0° / V: 49.9°. |
| Minimum thermal focusing distance of 0.5 m (0.5 ft) |
| Minimum visible focusing distance of 1 m |
| Thermal DDE |
| 16-level thermal digital zoom |
| Automatic ICR in visible channel |
| Minimum visible channel illumination of 0.05 lux in color, 0.005 lux in black and white and 0 lux with illumination on |
| IR illumination up to 30 m |
| Warm light up to 30 m |
| Automatic and manual illumination control |
| Video |
| H.265, H.264, H.264H and MJPEG compression |
| Stream 1 thermal: 1280 x 960 / 1024 x 768 / 640 x 480 / 256 x 192 up to 25 fps at 50 Hz and up to 30 fps at 60 Hz |
| Thermal Stream 2: 640 x 480 / 256 x 192 up to 25 fps at 50 Hz and up to 30 fps at 60 Hz |
| Stream 1 visible: 2688 x 1520 / 1920 x 1080 / 1280 x 720 / 704 x 576 up to 25 fps at 50 Hz and up to 30 fps at 60 Hz |
| Stream 2 visible: 1280 x 720 / 704 x 576 / 352 x 288 up to 25 fps at 50 Hz and up to 30 fps at 60 Hz |
| Region of interest not removable |
| Image rotation of 0°, 90°, 180° and 270° |
| Functionalities |
| Automatic and manual AGC on thermal and visible channel |
| 2D NR and 3D NR noise reduction in thermal and visible channels |
| 120 dB WDR |
| BLC and HLC |
| Auto, manual, indoor, outdoor, tracking, street lamp and natural white balance |
| S/N ratio ≥55 dB |
| 18 color palettes in the thermal channel |
| Visible and thermal fusion mode available and disabled by default |
| Visible and thermal image fusion |
| Temperature measurement range in low temperature mode from -20 °C to +150 °C |
| Maximum temperature accuracy of ±8 °C or ±8% |
| Working temperature for measurement from -20 °C to +50 °C |
| Local audio with white, red and blue signal lights |
| Intelligent functions |
| General intelligence with line crossover and intrusion |
| Heat and fire detection with alarm |
| Hot and cold spot tracking |
| Human and vehicle classification |
| Smoke detection |
| Call detection |
| Tobacco detection |
| Ultra-low false alarm with Xinghan Large-Scale AI Model |
| Up to 16 detectable fire points |
| Audio |
| Built-in dual microphones |
| 1 audio input |
| 1 audio output |
| G.711a, G.711u, PCM and AAC audio compression |
| Storage |
| MicroSD card slot up to 256 GB (card not included) |
| Alarms |
| 2 alarm inputs |
| 2 alarm outputs |
| Communication interface |
| RS-485 via 1 pair |
| Network |
| RJ45 10/100 Base-T network interface |
| Protocols HTTP, HTTPS, TCP, ARP, RTSP, RTP, UDP, RTCP, SMTP, FTP, DHCP, DNS, DDNS, PPPoE, IPv4/v6, SNMP, QoS, UPnP, NTP, Multicast, SFTP and 802.1x |
| ONVIF, CGI and Dahua SDK interoperability |
| IE11 and later, Chrome 65 and later and Firefox 65 and later support |
| Up to 12 users |
| Security via authorized user and password, linked MAC address, HTTPS, IEEE 802.1x and controlled network access |
| Power supply |
| 12 VDC (±20%) to 24 VDC power supply |
| 802.3af PoE |
| Basic power consumption less than 5.3 W at 12 VDC with illumination, speaker, red and blue light and power output off |
| Basic power consumption of 6.5 W for PoE without output function |
| Maximum power consumption less than 12 W at 12 VDC with illumination, speaker, red and blue light and power output on |
| Maximum power consumption of 11.5 W for PoE without output function |
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| No power output when powered by PoE |
| Environmental |
| Operating temperature -40 °C to +65 °C (-40 °C to +65 °C) |
| Storage temperature -40 °C to +70 °C (-40 °C to +70 °C) |
| Relative humidity ≤95%. |
| IP67 protection |
| Physical characteristics |
| Dimensions of 122 x 122 x 117.4 mm |
| Packaging dimensions: 155 x 155 x 135 mm |
| Net weight: ≤0.9 kg |
| Gross weight: ≤1 kg |
| Wall, ceiling or junction box mounting with optional accessories |


