Hotsale Mini 10.525GHz Doppler Radar Motion Detector / Microwave Doppler Wireless Radar Sensor for LED Lighting - China Microwave Sensor and Microwave Module
Amazon.com: CQRobot Ocean: 10.525GHz Doppler Effect Microwave Motion Sensor Compatible with Raspberry Pi and Arduino Board. for Industrial, Measurement, Automatic Doors, Sensor Lights, Reversing Radar, etc. : Electronics
Using and Understanding Doppler Radar
SpaceMotion SMM 01 Radar Sensor Series - Telco Sensors