Amazon.com: SparkFun Human Presence Sensor Breakout - AK9753 (Qwiic) - 4-Channel Nondispersive Infrared Detector Tell which Direction a Person is Moving 16-bit Digital Value Four sensors Voltage 1.7V to 3.3V PIR : Electronics
Human Presence Detector HP2 - Steinel Australia
LifeSmart Human Presence Sensor | BluConnect
Human Presence Detection Module | Radar Sensor Micradar | Radar Sensor Robot - Human - Aliexpress
The concept of human presence detection method based on wireless smart... | Download Scientific Diagram
Popular Human Detection Sensors for Home Automation