Hi-Link LD1125H 24GHz Breathing Detection Radar Sensor 3.3V-5V (Microwave Presence and Respiration Detection Module)

The Hi-Link LD1125H is a 24GHz microwave radar sensor designed for non-contact breathing and human presence detection. Operating within the 23.5GHz to 24.5GHz frequency band, it uses millimeter-wave radar technology to detect subtle chest movements caused by breathing without requiring physical contact. The module operates from a 3.3V to 5V power supply, making it suitable for integration with microcontrollers, embedded systems, smart home devices, and healthcare monitoring applications.

Key Features -

• 24GHz millimeter-wave radar sensing technology

• Non-contact breathing detection

• Human presence detection capability

• Wide operating voltage from 3.3V to 5V

• Low power consumption

• High sensitivity for micro-motion detection

• Compact module for easy integration

• Stable and reliable performance

• Suitable for embedded and IoT applications

• Supports continuous monitoring

Specifications -

• Product Type - Breathing Detection Radar Sensor

• Model - LD1125H

• Brand - Hi-Link

• Operating Frequency - 23.5GHz to 24.5GHz

• Radar Type - 24GHz Millimeter-Wave Radar

• Operating Voltage - 3.3V to 5V DC

• Operating Current - 80mA

• Detection Method - Microwave Radar

• Mounting Type - PCB Module

Applications -

• Smart home automation

• Human presence detection

• Breathing monitoring systems

• Healthcare monitoring devices

• Occupancy sensing

• Sleep monitoring systems

• IoT automation projects

• Intelligent lighting control

• Security and monitoring systems

• Embedded electronic applications