320m Long Range Radar Sensor Traffic Speed Sensor
LDTR22M narrow-wave speed measurement radar is a millimeter-wave radar module integrating a microstrip antenna, a radio frequency circuit and a signal processing circuit, which directly outputs the speed information of the target.
1. Exceptional Range for High-Speed Roads
Captures vehicle speeds from as far as 320 meters, making it suitable for highway speed enforcement and early warning systems.
2. Pinpoint Lane Accuracy
With a horizontal beam width of just 7°, the radar focuses on a single lane, reducing false detections from adjacent traffic.
3. Reliable Speed Measurement
Delivers consistent accuracy with ≤ ±1 km/h error across the full 2–320 km/h range.
4. Built for Harsh Environments
Operates reliably in temperatures from -20°C to +85°C with robust interference rejection features.
5. Easy System Integration
Offers multiple output options including RS485, RS232, pulse, and relay, allowing direct connection to speed signs, cameras, or controllers.
Main parameters
| Part number | LDTR22M |
| Operating Frequency | 24.075~24.25 GHz |
| Modulation Mode | CW for moving vehicle detection |
| Detection Range | Max 320m |
| Speed Measurement Range | 2 km/h to 320 km/h |
| Speed Accuracy | ≤ ±1 km/h (at zero angle between target motion and radar beam) |
| Interfaces | RS485 and RS232 |
| Baud rate | 9600 bps |
| Operating Voltage | 9–24V DC |
| Power Consumption | 70mA |
| Output Power (EIRP) | -18.23 dBm |
| Refresh cycle | 20ms |
| Dimensions(L x W x H) | 105 x 85 x 13 mm |
| Antenna Angle | 7° horizontal, 28° pitch |
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Application
It can be used to detect the speed of vehicles at a distance of up to 320 meters. It adopts an integrated radio frequency chip, with extremely high frequency stability and a speed measurement accuracy of ≤1KM/h.
Technical Support & Custom Solution
We provide datasheet, dimension drawing, interface protocol, demo code and technical support.
Support sample test, ODM/OEM customized service, welcome global customers to inquire and cooperate.
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