Widershine · Industrial Inspection · Model 3611123
Inspect confined spaces.
Keep operators outside.
The 3611123 is a collision-protected inspection drone for indoor and confined environments. Its spherical protective frame, LiDAR-based SLAM positioning and high-output lighting support close-range inspection where satellite positioning is unavailable.
Built for close-range indoor inspection
Protective spherical frame
A detachable protective frame surrounds the aircraft to buffer impacts and protect it from multiple directions. The aircraft can resume operation after slight contact during flight.
Navigation without GPS
Laser SLAM combines environmental sensing with indoor positioning. The drone builds a spatial model in real time and provides centimeter-level positioning in satellite-denied environments.
Distance lock: 20–300 cm
Maintain a preset standoff distance for smooth inspection along repetitive structures such as welds, beams and walls.
Full HD live inspection
1080p first-person-view transmission supports an intuitive remote inspection experience, with video latency as low as 80 ms. A 4K camera records fine visual details.
Lighting for dark spaces
Forty high-efficiency LEDs deliver up to 10,000 lumens. The camera's 180° up-and-down gimbal movement supports inspection of overhead, forward and lower structures.
Flexible communication
Wireless control supports indoor remote inspection. An optional relay extends operation in obstructed environments; an optional optical fiber module provides a separate wired communication option.
From live point clouds to 3D inspection reports
LiDAR captures up to 200,000 points per second. The onboard computer builds a 3D point cloud model in real time, while the operator can view the flight path and identify areas that still need to be scanned.
Precise spatial awareness
Real-time mapping supports navigation in mines, tunnels, pipe galleries and industrial buildings without relying on satellite signals. Hovering positioning accuracy is less than 2 cm.
The distance-lock function helps maintain consistent standoff spacing during close-range visual inspection.
Inspection data can be imported with one click to reconstruct the 3D structure of a confined space, supporting visual review of structures and inspection coverage.
Choose the imaging and sensing configuration
Start with the visible-light version for routine visual inspection, or choose the dual-light version when thermal-assisted observation is required. Communication and gas-sensing options can be selected for the application.
Standard visible-light version
3611123
- 4K visible-light camera with a 12.27 MP sensor
- 180° up-and-down gimbal movement
- 1080p live video and low-light imaging
- LiDAR SLAM and real-time point cloud mapping
Dual-light version
3611123T
- Visible-light and thermal-assisted observation
- 256 × 192 thermal image resolution
- 9.7 mm thermal lens with F1.0 aperture
- 2 m minimum thermal focus distance
| Configuration | Capability | Selection Focus |
|---|---|---|
| 3611123 visible-light | 4K imaging, Full HD live view, LiDAR mapping | Visual inspection of structures and confined spaces |
| 3611123T dual-light | Visible-light imaging and thermal-assisted observation | Applications requiring a thermal view alongside visual images |
| Optical fiber module — optional | Up to 1 km fiber; 720 × 480 analog image transmission | A separate wired link for selected communication conditions |
| Wireless relay — optional | Extended wireless inspection capability | Obstructed indoor communication paths |
| Gas sensor — custom | CO, H₂S, O₂ and CH₄ sensing options | Inspection missions requiring gas monitoring |
Share the access dimensions, inspection distance, lighting conditions and required sensors with our team so the aircraft configuration can be matched to your site.
Applications across confined and industrial spaces
The compact 365 × 352 × 200 mm aircraft is designed for inspection in environments where access is restricted and satellite positioning is unavailable.
Mines, tunnels and pipe galleries
Inspect internal passages, map spatial structures and observe areas that are difficult to reach directly.
Factories and construction spaces
Examine indoor structures, beams and enclosed industrial areas using close-range imaging and bright onboard lighting.
Ships, bridges and municipal assets
Support visual inspection of internal ship spaces, bridge structures, utility areas and other restricted-access assets.
Technical specifications
Expand each section to view aircraft, imaging, communication and sensor specifications. Optional and custom configurations are identified separately.
Aircraft
| Parameter | Specification |
|---|---|
| Model | 3611123 |
| Aerodynamic Layout | Quadcopter multirotor |
| Dimensions (with Protective Frame) | 365 × 352 × 200 mm |
| Weight | 1190 g (airframe only) / 1820 g (with battery) |
| Maximum Take-off Mass | 2020 g |
| Flight Modes | SLAM Mode; ATTI-Attitude Mode |
| Flight Time | 15 min (hovering) |
| Maximum Ascent / Descent Speed | 1 m/s (SLAM Mode); 1 m/s (Attitude Mode) |
| Maximum Flight Speed | 3 m/s (SLAM Mode); 5 m/s (Attitude Mode) |
| Maximum Wind Resistance | 3 m/s (SLAM Mode); 5 m/s (Attitude Mode) |
| Materials | Carbon fiber composite, magnesium alloy, premium thermoplastic, aviation-grade aluminum |
| Motor Type | Brushless motor |
| Maximum Cruising Range | 1.8 km |
| Noise Level | 90 dB |
| On-board Computer | Six-core high-performance 64-bit processor; Linux-based system |
| Operating Temperature | −10 °C to 50 °C |
| Propeller Service Life | 25 h |
| Body Interfaces | USB-C 3.0 × 2 |
| Protective Frame | Detachable spherical protective frame; buffers collision impacts and allows operation to resume after slight contact during flight |
| Live Video Transmission | 1080p Full HD; First-Person View (FPV) supported |
| Live Video Latency | As low as 80 ms |
| Distance Lock | Automatically maintains a preset distance from 20 cm to 300 cm |
| Positioning | Laser SLAM; centimeter-level positioning in satellite-denied indoor environments |
| Hovering Positioning Accuracy | Less than 2 cm |
| Real-time Mapping | Real-time 3D point cloud model generation; simultaneous display of flight paths and spatial point clouds |
| 3D Inspection Report | One-click inspection data import to reconstruct the 3D structure of confined spaces |
| Wireless Inspection | Wireless inspection in obstructed indoor spaces; optional relay for extended operation |
Lighting
| Parameter | Specification |
|---|---|
| Light Source | 40 high-efficiency LEDs |
| Brightness | 10,000 lm |
Battery and Charger
| Parameter | Specification |
|---|---|
| Battery Cycle Life | 100 cycles |
| Charging Time | 40 min |
| Energy | 146.9 Wh |
| Battery Weight | 632 g |
| Nominal Voltage | 23.1 V |
| Operating Temperature | −10 °C to 45 °C |
| Rated Capacity | 6500 mAh |
Remote Controller
| Parameter | Specification |
|---|---|
| Operating Frequency | 2.4 GHz + 5.8 GHz |
| Signal Bandwidth | 10 MHz / 20 MHz / 40 MHz |
| Maximum Control Distance | 1000 m |
| Continuous Operation Time | 4 h |
| Weight | 850 g |
| Operating Temperature | −20 °C to 50 °C |
LiDAR
| Parameter | Specification |
|---|---|
| Laser Wavelength | 905 nm |
| Eye Safety Class | Class 1 (IEC 60825-1:2014), eye-safe |
| Range (at 100 klx) | 40 m at 10% reflectivity; 70 m at 80% reflectivity |
| Near Blind Zone | 0.1 m |
| Field of View | Horizontal: 360°; vertical: −7° to −52° |
| Point Cloud Output | 200,000 points/s |
| Anti-crosstalk Function | Supported |
| Power | 6.5 W |
Keep the LiDAR enclosure intact; do not disassemble the unit. At target distances of 0.1–0.2 m, point cloud data is for reference only and detection accuracy is not guaranteed.
Optional Optical Fiber Module
| Parameter | Specification |
|---|---|
| Configuration | Optional |
| Weight | 200 g (±10 g) |
| Maximum Length | 1 km with 0.26 mm diameter fiber; 500 m with 0.37 mm diameter fiber |
| Cable Tension | 50 N |
| Analog Image Resolution | 720 × 480 (PAL/NTSC) |
Standard Visible-Light Camera
| Parameter | Specification |
|---|---|
| Configuration | Standard |
| Sensor Size | 1/2.3 inch |
| Effective Pixels | 12.27 MP |
| Field of View | 124° diagonal; 112° horizontal; 82° vertical |
| Aperture | F1.8 |
| Sensitivity | Optimized low-light performance |
| Camera Recording Resolution | 3840 × 2160 (4K) |
| Gimbal Movement | 180° up-and-down rotation |
| Maximum Recording Frame Rate | Up to 4K at 60 fps |
Thermal Camera — Dual-Light Version 3611123T
| Parameter | Specification |
|---|---|
| Configuration | Dual-light version |
| Maximum Image Size | 256 × 192 |
| Focal Length | 9.7 mm |
| Minimum Focus Distance | 2 m |
| Pixel Size | 12 μm |
| Field of View | 18.1° horizontal × 13.6° vertical; 22.6° diagonal |
| Maximum Aperture | F1.0 |
Custom Gas Sensor
| Gas | Measurement Range | Resolution |
|---|---|---|
| CO | 0–1000 ppm | 1 ppm |
| H₂S | 0–100 ppm | 1 ppm |
| O₂ | 0–30 %VOL | 0.1 %VOL |
| CH₄ | 0–100 %LEL | 0–1 %LEL |
| Parameter | Specification |
|---|---|
| Configuration | Custom |
| Detectable Gas Types | CO (carbon monoxide); H₂S (hydrogen sulfide); O₂ (oxygen); CH₄ (methane) |
| Operating Temperature | −20 °C to 50 °C |
| Humidity | 15% RH to 90% RH |
| Response Time | <30 s |
| Service Life | 2 years (in normal air) |
Plan your indoor inspection system
Tell us about your operating environment, access restrictions, inspection distance and required camera or sensor options. Our team can help you select a suitable 3611123 configuration.
Email: business@widershine.com · WhatsApp: +86-186-2800-0208
For trained professional operators. Assess the site and operating conditions before use. Do not operate in a potentially explosive atmosphere unless the complete configuration has the appropriate hazardous-area rating.