Ai-Thinker Rd-03H 24GHz Human Presence Radar Sensor – Up to 10m
₹326.86 incl GST
Ai-Thinker Rd-03H 24GHz radar module with S1KM0000 chip. Features long 8m detection range, ultra-slim 35x7mm size, and automatic threshold generation.
The Ai-Thinker Rd-03H is a high-performance 24GHz millimeter-wave radar sensor designed for applications requiring long-range detection in compact spaces. Powered by the ICLEGEND Micro S1KM0000 chip, this module offers an extended sensing distance of up to 8 meters, significantly further than standard 5m modules.
Ultra-Slim Form Factor
With a unique dimension of just 35mm x 7mm, the Rd-03H is engineered to fit into tight enclosures where standard square modules won’t, such as LED tube lights, thin bezels of advertising screens, or slim wall switches.
Smart Auto-Calibration
One of the standout features of the Rd-03H is its ability to automatically generate detection thresholds. This reduces the need for tedious manual debugging and ensures high detection accuracy right out of the box. It supports visual configuration tools to easily set sensing distances and shield outside interference.
Key Features
-
Extended Range: Detects moving human bodies up to 8 meters away with real-time reporting.
-
Compact Design: Ultra-small 35mm x 7mm footprint, ideal for unobtrusive installation.
-
Wide Coverage: Large detection angle of ±60 degrees ensures broad area monitoring.
-
Advanced Config: Supports “range gating” to divide sensing areas and shield specific zones from interference.
-
Flexible Power: Supports wide voltage ranges (3.0~3.6V / 4.5~5.5V); Note: Default version is 3.3V.
-
Robust Connectivity: Standard 2.54mm pin header with UART serial communication.
Technical Specifications
| Feature | Specification |
| Model | Rd-03H |
| Chipset | ICLEGEND Micro S1KM0000 |
| Frequency | 24 GHz (ISM Band) |
| Max Sensing Range | 8 Meters |
| Detection Angle | ±60 Degrees |
| Dimensions | 35mm x 7mm (Ultra-Slim) |
| Power Supply | Default 3.3V (Supports 3.3V/5V ranges) |
| Unique Feature | Automatic Detection Threshold Generation |
| Antenna | 1 Transmit / 1 Receive (1T1R) |
Typical Application Scenarios
-
Smart Lighting: Perfect for linear LED lights and tube lights due to its narrow shape.
-
Digital Signage: Long-range wake-up for advertising kiosks (activates when a user is 8m away).
-
Security: Monitoring corridors and hallways where long-distance sensing is required.
-
Energy Management: Parking monitoring and smart appliance control.
Please download the datasheet here.
Important Product Disclaimer
Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. Product images are shown for illustrative purposes only and may differ from the actual product.
Note
The actual product may vary in slight variation in electronic components/marking/resemblance with the image shown depending upon quantity availability. Images are for representation only.
Related Radar and UWB Products
Compare this module with related radar sensors, mmWave modules and development boards available from Robosap.
- Ai-Thinker Rd-03_V2 24GHz mmWave Human Presence Radar Sensor
- Ai-Thinker Rd-03E 24GHz Radar Ranging and Gesture Sensor Module
- Ai-Thinker Rd-03L_V2 Low-Power 24GHz Human Presence Radar Sensor
- Browse all Radar and UWB modules
Downloads and Documentation
Use these manufacturer or reference documents to verify the exact specifications, pin details, firmware support and integration requirements before designing your system.
Documents may be updated by the manufacturer. Always confirm critical electrical and mechanical details with the latest official documentation before production use.
Frequently Asked Questions
1. What is the Ai-Thinker Rd-03H?
The Rd-03H is a compact 24GHz millimeter-wave radar sensor designed for long-range human motion detection.
2. What is the maximum sensing range?
It can detect moving human bodies up to approximately 8 meters.
3. What is the operating frequency?
The module operates at 24GHz (ISM band).
4. What is the detection angle?
The specified detection angle is approximately ±60°.
5. What makes the Rd-03H compact?
Its ultra-slim 35mm × 7mm design allows installation in narrow spaces such as LED lights, displays, and slim switches.
6. What power supply does it require?
The default version operates at 3.3V, with the supplied specifications indicating support for 3.3V and 5V ranges.
7. Does it support automatic calibration?
Yes. The Rd-03H supports automatic detection threshold generation to simplify sensor configuration.
8. Can the detection area be configured?
Yes. It supports range gating to define sensing areas and help reduce interference from unwanted zones.
9. How does it communicate with a controller?
It provides UART serial communication through a standard 2.54mm pin header.
10. What antenna configuration does it use?
The module uses a 1T1R (1 Transmit, 1 Receive) antenna configuration.
11. What are common applications?
It is suitable for smart lighting, digital signage, corridor monitoring, security systems, parking detection, and smart appliance control.
12. Can it be used in narrow enclosures?
Yes. Its ultra-slim form factor is specifically suitable for space-constrained installations.
Downloads and Documentation
Use these manufacturer or reference documents to verify the exact specifications, pin details, firmware support and integration requirements before designing your system. Documents may be updated by the manufacturer. Always confirm critical electrical and mechanical details with the latest official documentation before production use.Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet