1. Core Selection Criteria

Payload Weight

• Under 2 kg – Light cameras, thermal cameras, and small sensors (4-axis lightweight drones)
• 2 kg – 8 kg – Survey payloads, speakers, and basic drop devices (medium 6-axis drones)
• Over 8 kg – Heavy delivery, multi-sensor systems, and fire-fighting equipment (heavy 6-axis / 8-axis drones)

Flight Endurance

• 15–25 minutes – Short-range patrol and fixed-point inspection
• 25–40 minutes – Large-area mapping, power line inspection
• 40+ minutes – Long-distance pipeline, forest, and large-scale missions

Working Environment

• Plain and urban areas – Standard configuration
• Mountain and high-altitude areas – High wind resistance and altitude-optimized models
• Dust or humid conditions – IP54 or higher protection grade

Positioning Accuracy

• General inspection – Standard GPS positioning
• Mapping and precision operations – RTK high-precision positioning required

2. Application-Based Model Recommendation

3. Key Parameter Selection Tips

• Always refer to loaded endurance – Flight time drops significantly with full payload
• High-altitude areas require power redundancy – Motor power decreases at high elevation
• Choose 6-axis or 8-axis for windy environments – 4-axis drones lack stability above level 5 wind
• 900 MHz link for complex terrain – 2.4 GHz signal is easily blocked by mountains and forests
• 6-axis drones offer the best balance – Stable performance and lower maintenance cost for most industrial scenarios

4. Pre-Purchase Checklist

• Confirm maximum payload weight
• Confirm operating altitude and maximum wind level
• Verify required full-load flight time
• Determine whether RTK precision is needed
• Check high / low temperature working conditions
• Confirm waterproof and dustproof requirements
• Confirm remote control and video transmission distance
• Check compatibility with cameras, sensors, and accessories