24GHz Traffic Speed Sensor 320m Car Radar Sensor
LDTR22A 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. Ultra-Long Detection Range
Detects vehicles up to 320 meters away, ideal for highways and high-speed road monitoring.
2. Narrow Beam for Single-Lane Targeting
Horizontal beam width of only 7° ensures precise targeting of individual lanes, minimizing false triggers from adjacent lanes.
3. High-Precision Speed Measurement
Achieves ≤ ±1 km/h accuracy across a wide range of 2 to 320 km/h.
4. Highly Configurable
Sensitivity, direction filtering, speed units, frame rate, and relay output are all adjustable via serial commands.
5. Flexible Output Options
Supports RS485, RS232, pulse alarm outputs, and optocoupler relay outputs for easy integration.
Main Parameters
| Part number | LDTR22A |
| Operating Frequency | 24.00–24.25 GHz |
| Modulation Mode | Continuous Wave (CW) for moving vehicle detection |
| Detection Range | Up to 320 meters |
| Speed Measurement Range | 2 km/h to 320 km/h |
| Speed Accuracy | ≤ ±1 km/h |
| Interfaces | RS485 and RS232 |
| Baud rate | 9600bps |
| Operating Voltage | 9–24V DC |
| Power Consumption | ≤ 70mA @ 12V |
| Output Power (EIRP) | -18.23 dBm |
| Antenna Beamwidth | Horizontal 7°, Vertical 28° (3dB); |
| Effective coverage | ≥1 traffic lane |
| Working temperature | -20~+85 |
| Refresh cycle | 20 ms |
| Dimensions (LWH) | 105*85*13 mm |
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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.
It is widely applied to speed alerts on various types of roads such as expressways, urban trunk roads, county and city grade roads, and urban-rural main roads, as well as early warnings for road curves and intersections.
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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