RA24K45 24GHz Presence Sensor Switch – Integrated mmWave Radar Module, Human Motion Detection📝 Product Description

The RA24K45 24GHz Presence Sensor Switch is an all-in-one mmWave radar solution that integrates both the sensor and control circuit into a compact module. Designed for human presence and motion detection, it provides direct switching output, eliminating the need for an additional controller.

Using 24GHz FMCW radar technology, the RA24K45 detects people moving, sitting, or even performing small actions like breathing. It can be used in smart lighting, energy-saving systems, home automation, offices, and hotels. Unlike PIR sensors, it works reliably in dark rooms, bright sunlight, fog, or behind glass and plastic.

This module functions as a presence sensor switch, meaning it can directly control a load (such as lights or fans) based on human occupancy — making it simple and practical for real-world installations.

🔧 Key Features

• 📡 Integrated 24GHz Radar Module – Combines sensor + switch in one unit

• 👤 Human Presence & Micro-Motion Detection – Detects sitting, walking, breathing

• 🔌 Direct Load Switching – No extra controller required

• 🚪 Through-Obstacle Sensing – Works through glass, thin wood, and plastic

• 🌙 Reliable in All Environments – Works in the dark, sunlight, fog, or temperature shifts

• ⚡ Low Power Consumption – Energy-efficient operation

• 🛠 Compact Design – Easy to integrate into lighting and automation products

📋 Technical Specifications

🌍 Applications

• Smart lighting systems (auto on/off with human presence)

• Office and classroom energy-saving solutions

• Hotels and public spaces (automated lighting & ventilation)

• Security and occupancy monitoring

• IoT and home automation devices

📦 Package Includes

• 1 × RA24K45 24GHz Presence Sensor Switch Module