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| Brand | Vientiane Environment |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | WX-LDS2 |
| Price | USD 425 (approx.) |
| Measurement Principle | Doppler Effect |
| Frequency Band | 24 GHz |
| Transmit Power | ≤20 dBm (10 mW nominal) |
| Beam Angle | 22° × 8° |
| Speed Range | 1–240 km/h |
| Resolution | 0.1 km/h |
| Accuracy | ±1 km/h |
| Detection Direction | Positive = approaching, Negative = receding |
| Maximum Detection Distance | ≥200 m |
| Angle Compensation | Automatic vertical compensation |
| Charging Voltage Limit | 12.6 V |
| Battery Capacity | 3600 mAh |
| Operating Time | ≥10 hours |
| Housing Material | ABS resin |
| Weight | 504 g |
| Operation Mode | Handheld or tripod-mounted |
| User Interface | Dual-language (English/Chinese) |
| Data Storage | Local history logging with export capability |
| Print Function | Thermal printer support (auto/manual print of up to 3 most recent overspeed events) |
| Overspeed Configuration | Configurable threshold, real-time overspeed ratio [(v − vₗᵢₘ)/vₗᵢₘ], max speed capture, and timestamped event logging |
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