Static human presence recognition: when someone is , the lights are off; when someone is , the air conditioner is still on. Lingpu radar human presence sensor is based on 24G millimeter wave technology. Three senses fusion, powerful and power-saving, Infrared pyroelectric sensor: recognizes human movement, can accidental contact caused by movement of , fans, etc.! Millimeter wave radar: detects tiny movements, Light sensor: recognizes ambient light,, Manufacturer: Akfldms