HI-LINK HLK-LD2410 Human Presence Detection Sensor

The HLK-LD2410 Radar Sensor Module is a high-precision 24GHz millimeter-wave human detection sensor designed to detect both human presence and movement — including tiny micro-motions like breathing. This makes it ideal for smart home automation, security monitoring, energy saving systems, occupancy detection and health-based applications.

Unlike PIR motion sensors, the LD2410 can detect stationary humans through micro-movement sensing, providing reliable performance even in dark or obstructed environments. It features an integrated PCB antenna and communicates through a UART (serial) interface, allowing easy integration with Arduino, ESP32, STM32, Raspberry Pi and other controllers.

The detection range is configurable up to ~5 metres, and the module is designed for low-power continuous operation, making it suitable for always-on smart devices.

⭐ Features

• 24GHz millimeter-wave radar sensing

• Detects human presence, motion & micro-movements

• Adjustable detection range (up to ~5m)

• Works reliably in dark or visually-blocked areas

• Low-power compact design

• Integrated PCB antenna

• UART serial communication

• Stable operation under light, temperature & humidity variations

🔧 Specifications

• Operating Frequency: 24GHz

• Detection Range: Up to ~5 metres (configurable)

• Detection Type: Presence, motion & micro-movements

• Supply Voltage: 5V DC

• Interface: UART (Serial)

• Antenna: Integrated PCB antenna

• Operating Temperature: -40°C to +85°C

• Power Consumption: Low-power operation

🏷 Applications

• Smart home automation

• Occupancy detection

• Security & intrusion monitoring

• Lighting & appliance auto-control

• Elder care & health monitoring

• Office & building automation

• Contact-free detection systems

📦 Package Includes

• 1 × HLK-LD2410 24GHz Human Detection Radar Sensor Module

Note: Images are for representation only. Actual product appearance may slightly vary.