Description
Product Introduction
The JDW-400/450 series are robust, high-power electric sirens designed for air defense and flood emergency drills. Powered by 380V three-phase electricity,ensuring wide-area coverage. Built with corrosion-resistant aluminum alloy, they withstand harsh environments. Accurate sensing, instant alarm, effectively preventing various safety hazards. Low consumption, high efficiency, and long-lasting operation provide solid security for your safety. Ideal for military bases, dams, prisons, and disaster response systems.
Product parameters
| Model | Voltage (V) | Sound pressure（radius 5 m) | Material | Frequency (HZ) |
| ST-JDW400 | 380 | 126 | Aluminum alloy | 500/580 |
| ST-JDW450 | 380 | 130 | Aluminum alloy | 500/580 |
| ST-JDW450-2 | 380 | 132 | Aluminum alloy | 500/580 |
Product Features
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The JDW-400/450 models deliver an average sound pressure level of 126–132 dB (measured at 5 meters), ensuring loud, penetrating alerts for large-scale drills. This high-decibel output guarantees visibility in noisy environments, such as urban areas or industrial zones.
- Built from heat-treated special aluminum alloy, these sirens resist corrosion, oxidation, and deformation, enabling reliable performance in extreme weather conditions like heavy rain, sandstorms, or marine environments.
- Designed with optimized acoustic chambers and ventilation slots, the sirens project sound over long distances, covering areas such as airports, military bases, or flood-prone regions. Their directional sound dispersion minimizes dead zones during drills.
- Ideal for air defense drills, flood control alerts, mining safety warnings, and emergency evacuation systems in prisons, power plants, and residential zones. Their adaptability makes them suitable for both civilian and military infrastructure.
- With a 4–7.5 kW power rating and low energy consumption, the sirens balance performance and cost-efficiency. Their durable construction ensures long service life, minimizing replacement costs for government agencies or disaster management authorities.
Installation and Instructions
Install JDW-400/450 high decibel electric alarm, please choose a suitable location to fix it and ensure coverage of the monitoring area. Use the included bracket and screws to securely install the alarm and connect it to a suitable power source. After installation, perform simple settings and testing through the remote control or mobile app to ensure that the alarm sound is clear and loud. When in use, alarm modes such as sound and light, voice, etc. can be selected as needed. Regularly check the status of the alarm, replace the battery in a timely manner, and keep the equipment running smoothly. Comply with product safety warnings to ensure safe operation.JDW-400/450 high decibel electric alarm, safeguarding your safety.
