24GHz Doppler Radar Sensor Car Speed Sensor Module
LDTR20VDM speed 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 beyond 180 meters, ideal for highways and high-speed road monitoring.
2. High-Precision Speed Measurement
Achieves ±1 km/h accuracy across a wide range of 1 to 240 km/h.
3. Wide Coverage Angle
Horizontal ±20° beam width covers more than 4 lanes, reducing the need for multiple sensors.
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, UART, and direct alarm outputs (high/low level) for easy integration into existing systems.
Main parameters
| Frequency range | 24.075-24.175GHz |
| Modulation mode | CW detects moving vehicles |
| Detection distance | 180 m |
| Interface | RS485/TTL. |
| Baud rate | 9600bps |
| Speed measurement range | 1KM/H to 240KM/H. |
| Speed measurement error | less than ±1KM/H. |
| Voltage | 9-24V |
| Current | ≤50mA@12V |
| Antenna Angle | Horizontal ±20°, pitch ±8° |
| Output power(EIRP) | 20dBm |
| Sensor size | 69*53*5mm |
| Working temperature | -20℃~+85℃ |
| Storage temperature | -40℃~+125℃ |
Request Free Quote for 24GHz Doppler Radar Sensor Car Speed Sensor Module
Application
It can be used for long-distance vehicle speed measurement over 180 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.
Related News
In July 2026, traffic police in India deployed handheld radar speed guns on the highway connecting Jammu and Srinagar to […]
In early July 2026, an S-band fully polarized active phased-array weather radar model “WDSPT0152” was officially unveiled in Zhuhai, Guangdong. […]
The LDSR08M is a high-performance 24GHz Doppler radar sensor designed specifically for water flow radar and velocity measurement applications. Integrating a microstrip antenna, RF circuit, and […]
The LDAM1103 is a high-performance 24GHz radar sensor module designed specifically for Doppler speed measurement applications. Adopting the German BGT34LTR11 series 24GHz microwave radar sensor chip […]
The LDAM1102 is a high-performance 24GHz radar antenna module designed specifically for Doppler speed measurement applications. Adopting the German BGT34LTR11 series 24GHz radar MMIC […]
The LDMR100 is a high-performance 79GHz radar module specifically designed for close-range zone early warning and obstacle detection applications. Integrating antenna, RF circuit, and […]
CTLRR-220 Pro 77GHz Long-Range Radar: Automotive-Grade Blind Spot & Collision Avoidance Sensor The CTLRR-220 Pro is a high-performance 77GHz long-range millimeter-wave radar independently developed […]
The LDL508PRO is a high-performance 24GHz radar sensor specifically designed for detecting multiple dynamic and static targets within a defined range. Operating in FMCW […]
