Ai-Thinker Rd-03H 24GHz Radar Sensor – Upto 8m Range

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

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.

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