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CHNSpec EP-DU/EP-NU Series Airborne EL/PL Detectors are engineered for drone inspections of large-scale photovoltaic plants. Fully compatible with the DJI M350/M400 drone platforms, they feature a lightweight design, comprehensive detection modes, and intelligent, user-friendly controls—significantly enhancing the efficiency, accuracy, and operational flexibility of airborne PV inspections across various precision requirements and project scales. 
- All-Mode, All-Weather Operation for Unrestricted Inspections: Supports nighttime EL / daytime EL / daytime PL full-mode detection, completely eliminating interference from ambient light such as sunlight, moonlight, starlight, and artificial lighting. This enables truly stable 24/7 all-weather operation, delivering clear inspection results whether for routine daytime batch inspections or precise nighttime troubleshooting, and adapting to complex outdoor climatic conditions.
- Lightweight Design for Efficient Deployment: Features an ultra-lightweight design that minimizes the payload on the drone. This facilitates quick assembly/disassembly, transportation, and on-site deployment, significantly enhancing operational mobility and efficiency.
- Intelligent and User-Friendly Operation: Equipped with a remote controller featuring an integrated high-brightness screen, supporting real-time image preview and flexible parameter adjustment for an intuitive user experience. It also features a multi-language operation interface, greatly lowering the skill barrier and improving on-site workflow fluency.
Typical applications 
Parameters
| Types | Night test | All-weather test | | Model | EP-NU-1200 | EP-DU-300 | EP-DU-500 | | Inspection Mode | UAV-mounted inspection | | EL Video | Enables high-definition string-level EL video function | | Remote Controller with Screen | Remote control aircraft, gimbal, infrared camera; adjustable camera configuration parameters; real-time inspection images viewable on display screen; photo capture function controllable. | | UAV Positioning | GPS + GLONASS + BeiDou + Galileo | | UAV Battery | 1 set (standard) | | Operating Temperature | -10～50℃ | | Controllable Rotation Range | Tilt: -(120, 60); Pan: -(310, 310) | | Pixel | 12 million pixels | 3 million pixels | 12 million pixels | | GPS Recording | EL imaging automatically records GPS/BeiDou positioning coordinates (latitude/longitude) | | Defect Location | Satellite-based latitude/longitude positioning enables precise navigation to locate each defective module's coordinate point | | Field of View | 46.3°× 36° | 39.1°x 29.8° | | Measurement Environment | Light/moonlight/starlight has no effect on detection | Daylight, moonlight, starlight, and artificial light have no effect on the test; all-weather adaptable | | Preview Function | Real-time preview, Users can directly view overall or partial internal defects of the modules through the live feed | | Image Format Output | JPEG | | Operation Interface | Chinese / (English optional) | | Night Vision Function | Supported | | Weight | ＜1KG | | Dimensions | 133*80*76mm | 106*80*76mm |
Accessories
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