JT47HD Directional Warning Sound Enhancer
High-Powered, Precision Audio Alert for Traffic Safety & Incident Management
Engineered for maximum impact in demanding environments, the JT47HD Directional Warning Sound Enhancer delivers intense, focused sound over long distances — ensuring clear, immediate communication in traffic control, emergency response, and roadway maintenance scenarios.
🔧 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | JT47HD |
| Rated Output Power | 150W |
| Peak Sound Pressure Level (SPL) | 145dB ± 2dB (@1 meter) |
| Frequency Response | 500Hz – 8kHz |
| Directivity (Beam Angle) | 10° @ -3dB (Ultra-Narrow Beam) |
| Sound Transmission Distance | Up to 1500 meters in open areas |
| Dimensions (L × W × H) | 544mm × 238mm × 367mm |
| Weight | 17.5kg |
| Ingress Protection (IP) Rating | IP56 (Dust & Water Resistant) |
| Installation Method | Multi-Angle Adjustable Mounting |
🌟 Key Features
✅ Ultra-Directional Sound Projection
With a narrow 10° beam angle, the JT47HD focuses sound like an "audio spotlight," delivering loud, clear warnings precisely where needed — minimizing noise pollution and maximizing targeting accuracy.
✅ Extreme Long-Range Audibility
Achieves effective sound transmission up to 1500 meters, making it ideal for highway corridors, tunnels, and large incident zones where immediate attention is critical.
✅ High-Power 150W Audio Output
Generates intense, penetrating sound that cuts through traffic noise, wind, and adverse weather conditions.
✅ Rugged All-Weather Construction
Housed in special steel casing for superior durability, corrosion resistance, and impact protection. Designed to withstand extreme temperatures, rain, dust, and physical impacts.
✅ IP56 Rated Protection
Ensures reliable operation in harsh environments — protected against dust ingress and powerful water jets from any direction.
✅ Flexible Installation Options
Features multi-angle adjustable mounting for optimal positioning on gantries, road signs, tunnels, or vehicle-mounted platforms.
✅ Vehicle-Mounted Ready
Perfectly suited for integration onto crash cushion vehicles, road maintenance trucks, and traffic management vehicles — providing dynamic perimeter warnings and on-site command capabilities.
📍 Application Scenarios
1. road Highways & Expressways
- Use Case: Installed on gantries and road signs for speed warning, lane closure alerts, and congestion notifications.
- Benefit:Directs warnings only to approaching vehicles, reducing driver confusion and improving compliance.
2. 🚧 Construction & Maintenance Zones
- Use Case:Deployed at roadwork sites for worker protection and traffic guidance.
- Benefit:Alerts drivers from a safe distance, preventing accidental intrusions into active work areas.
3. 🚨 Emergency & Accident Scenes
- Use Case:Mounted on incident response vehicles for perimeter control and crowd management.
- Benefit:Commands attention instantly with high-intensity directional sound, enhancing scene safety.
4. 🌧️ Tunnels & Low-Visibility Areas
- Use Case:Fixed installation in tunnels for emergency announcements and evacuation guidance.
- Benefit:Maintains clarity even in confined, echo-prone spaces with background noise.
5. 🚒 Mobile Traffic Management Units
- Use Case:Integrated into mobile command units or temporary roadblocks.
- Benefit: Provides instant, repositionable audio coverage for dynamic operations.
🛡️ Built for Reliability & Safety
- All-weather performance – Operates flawlessly in rain, snow, heat, and dust.
- High anti-riot rating – Resistant to vandalism and physical impact.
- Low maintenance design – Robust construction ensures long service life with minimal upkeep.
📦 Why Choose the JT47HD?
👉 Precision Targeting – Focus sound exactly where it’s needed.
👉 Maximum Impact – 145dB output ensures immediate attention.
👉 Extreme Durability – Built for the toughest outdoor conditions.
👉 Versatile Deployment – Fixed or mobile, urban or remote — it adapts.

















