Category:
Defender Air-Raid Siren
Defender Air Raid Siren
Product detail
Product Advantages
No external power supply required; can be used in any situation.
Made of special materials, resistant to strong winds, hail, moisture, and corrosion.
No jamming, no freezing, no deformation, etc.
Quick startup, smooth operation, loud sound source, strong penetration, and wide coverage.
Self-powered: Equipped with a 6C7A8.3-C260-11 diesel engine, it is the best early warning system for air defense operations and major disaster alerts worldwide.
Rapid response: The alarm can be activated in as little as 3 seconds, significantly reducing warning time.
Wide coverage: It generates effective air raid signals within a 5-kilometer radius, and under favorable conditions, the sound can be heard within an 80-square-kilometer area.
High sound pressure level: At a radius of 30 meters, it reaches 138 decibels, making it the loudest sound pressure level in the world.
Translated with DeepL.com (free version)
Product technical specifications
| Model | Engine | Rated Speed | Output Power | Start Time |
| Defender | 6C7A8.3-C260-11 | 3000 RPM | 260HP | ≤3 seconds |
| Average Sound Level | Frequency | Weight | External Dimensions | |
| 138dB±2 decibels (at a radius of 30 meters) | 460±20Hz | 3216kg | 2890x1950x2000mm |
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