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

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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 Parameter Value Frequency 24 – 24.25 GHz (ISM band) Detection Range (Wall Mount) Motion: up to ~6m / Presence: up to ~6m Detection Range (Ceiling Mount) Motion: ~4m / Presence: ~4m Beam Angle 100° × 80° Output Type Direct switch output (relay / load control) Operating Voltage 100 – 240V AC (integrated switch design) Power Consumption Low (module optimized) Delay Time Adjustable 2s – 3600s Operating Temp -25°C to +85°C Storage Temp -40°C to +125°C Humidity 5% – 95% RH Mounting Height ≤ 4.5m (recommended for ceiling) Module Size Compact integrated module 🌍 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

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