HLK-LD2410C Human Presence Sensor 5-12V 24Ghz Millimeter Wave Radar Sensor Module High Sensitivity Non-contact Heartbeat Motion Detection. Feature: Enhanced Sensitivity, Excellent Environmental Adaptability, Sleek Design with Hidden Installation, Flexible Configuration, Versatile Applications. Specification: Origin Mainland China, Type Module, Condition New, Application scenario The LD2410C human body sensing module can detect and recognize human movements, micro movements, standing, sitting, and lying down.