LEDAER D904
26GHz Parabolic Antenna Radar: High-Gain Solution for Tall Silos & Heavy Dust [cite: 149]
📌 Brief Introduction
The LEDAER D904 is a high-gain 26GHz radar level transmitter engineered for ultra-long-range measurement in bulk solid silos[cite: 148]. Featuring a high-performance parabolic antenna, it excels in capturing signals from up to 80 meters away, even in environments filled with heavy dust, steam, or material crystallization[cite: 149].
🔍 Product Details
The D904 is the go-to solution for the tallest industrial silos[cite: 151]. The parabolic design acts like a satellite dish, focusing the microwave pulses into a tight beam that penetrates dense dust clouds during filling[cite: 152]. This high-gain architecture allows it to detect weak echoes from uneven or sloping solid surfaces that standard horn antennas might miss, ensuring constant data flow for inventory management[cite: 153].
📋 Technical Specifications
| Parameter | Value |
|---|---|
| Brand [cite: 155] | LEDAER |
| Frequency [cite: 156] | 26GHz |
| Measuring Range [cite: 157] | 0 – 80m (Ultra long-range) |
| Accuracy [cite: 158] | $ \pm 3\text{mm} $ |
| Process Temp [cite: 159] | -40°C to 130°C |
| Pressure Range [cite: 160] | -0.1 to 0.3 MPa |
| Antenna Type [cite: 161] | Parabolic (Optimized for range & dust) |
| Output [cite: 162] | 4-20mA / HART / RS485 Modbus |
| Protection Grade [cite: 163] | IP67 / Exia II CT6 Ga (Optional) |
✨ Product Advantages
Ultimate Signal Gain
The parabolic antenna focuses energy more efficiently, providing strong signals even at maximum range[cite: 165].
Extreme Dust Penetration
Specially tuned for cement silos and fly ash bins where dust density is at its peak[cite: 166].
Narrow Beam Focus
Minimizes interference from silo walls and internal bracing in tall, narrow structures[cite: 167].
Self-Cleaning Design
The parabolic shape and high-frequency vibration help reduce material buildup on the antenna.
🏭 Application Scenarios
Monitoring storage facilities exceeding 50 meters in height[cite: 170].
Monitoring fine powders in high-dust construction industry environments[cite: 171].
Reliable tracking of coal levels in power plant storage and mining[cite: 172].
Measuring material height in large-scale bulk storage yards[cite: 173].
Why Choose LEDAER?
LEDAER’s D904 is tested in the world’s tallest silos to ensure stability at 80+ meters[cite: 175].
Built with high-strength materials to withstand abrasive industrial dust and vibration[cite: 176].
Our engineers provide remote assistance to ensure perfect calibration for your silo dimensions[cite: 177].
Unwavering Precision in the World’s Tallest Silos.





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