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HanxiaoMeow on Twitter: "Found a 24Ghz FMCW radar module on Aliexpress, cost about 25USD. It looks like some sort of FR4, but is that possible to make 24Ghz Antenna on FR4? https://t.co/v93CAhoNP1" /
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CDM324 24GHz Microwave Radar Sensor Module, Smart Microwave Body Induction Module Switch Module Intelligent Sensor, 5.5V Radar Detector
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Amazon.com: Radar Detector, Microwave Sensor Module Radar/Laser Detector with 360 Degree Detection, CDM324 24GHz 15m Radar Induction : Electronics
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LD2410 24G FMCW 24GHz Smart Human Presence Sensing Radar Module Millimeter Wave Motion Switch Sensor Module - Walmart.com
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