Hi-Link HLK-LD2451 24GHz Speed Radar Sensor (10m~100m) - GPIO/UART Output
The Hi-Link HLK-LD2451 is a 24GHz FMCW radar sensor module designed for vehicle speed and distance detection up to 100 meters. It provides GPIO and UART outputs for easy integration with microcontrollers (Arduino, ESP32, STM32) and industrial PLCs, delivering real-time target speed, distance, and movement direction data.
Features
- 24GHz FMCW (Frequency-Modulated Continuous Wave) radar for precise speed and distance measurement.
- Extended detection range up to 100 meters for outdoor vehicle monitoring applications.
- Configurable via mobile app for sensitivity, range, speed thresholds, and target direction.
- Dual-output interface: GPIO for simple triggers and UART for detailed data streaming.
- Certified for FCC and CE regulations in the 24GHz ISM band for compliant deployment.
Out of stock
The HLK-LD2451 operates on the 24GHz ISM band using FMCW radar technology. This principle involves transmitting a frequency-modulated continuous wave and analyzing the frequency shift of the reflected signal to accurately calculate target distance and radial velocity. The module’s integrated DSP applies advanced algorithms to filter noise and distinguish moving targets, outputting processed data including speed, distance, and movement direction (approaching/receding).
Engineered for robust outdoor performance, the sensor is housed in a compact, shielded enclosure suitable for integration into traffic monitoring systems, smart parking solutions, and perimeter security. Its configurable parameters allow adaptation to various scenarios, from highway speed enforcement to automated gate control, ensuring reliable operation across changing environmental conditions.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 10 × 7 × 2 cm |















