2. Not affected by temperature, heat source, light source and air 4. Effective identification and distance positioning of static human body 1. Millimeter wave radar detects the presence of human body, and the system pushes an alarm 3. Can detect the presence and movement of human body 5. Can be intelligently linked with the lighting and equipment of the application scene, Weight: 0.13889122506 Pounds, Manufacturer: ximie