RA24D18 24GHz Presence Sensor Module – Bluetooth Version 5.0, Human Detection & Occupancy Monitoring
Pickup available at Digilog Electronics
Usually ready in 2 hours
📝 Product Description
The RA24D18 24GHz radar module (Bluetooth version) is a smart presence detection sensor that combines mmWave radar technology with Bluetooth connectivity. It is designed to detect human presence, motion, and even small movements like breathing, making it much more accurate than traditional PIR sensors.
With its built-in Bluetooth module, the RA24D18 allows wireless configuration and data transmission, which makes it easier to integrate into IoT applications, smart lighting, home automation, and occupancy monitoring systems.
The sensor can reliably detect through materials like glass, wood, and plastic, and is unaffected by lighting conditions, temperature changes, or weather interference. Its compact size and low power consumption make it a great choice for energy-saving solutions and smart environments.
🔧 Key Features
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📡 24GHz mmWave Radar – Accurate human presence and micro-motion detection
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📶 Built-in Bluetooth – Easy wireless configuration and data communication
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🚪 Detects Through Obstacles – Works through glass, thin wood, and plastic
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🌙 Unaffected by Light/Temperature – Works in dark or bright environments
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⏱ Adjustable Delay Time & Sensitivity – Flexible for different scenarios
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⚡ Low Power Operation – Suitable for battery-powered IoT devices
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🛠 Compact Module – Easy to mount in lighting, appliances, 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° |
| Communication | Bluetooth (wireless config & data output) |
| Refresh Rate | ~150 ms |
| Operating Voltage | 4.5V – 8V |
| Operating Current | ~20mA |
| Delay Time | 2s – 3600s (adjustable) |
| Light Sensitivity | 10 Lux (adjustable) |
| Operating Temp | -25°C to +85°C |
| Storage Temp | -40°C to +125°C |
| Humidity | 5% – 95% RH |
| Output Level | 3.3V (High), 0V (Low) |
| Recommended Ceiling Height | ≤ 4.5m |
| Module Size | Compact PCB (refer datasheet) |
🌍 Applications
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Smart lighting systems (automatic on/off)
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Home & office automation
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Hotel and public building energy-saving control
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Security and occupancy monitoring
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IoT devices with Bluetooth integration
📦 Package Includes
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1 × RA24D18 24GHz Presence Sensor Module (Bluetooth version)
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