The Human Presence Sensor utilizes 24G millimeter wave radars technology to accurately detect human movement and breathing, providing reliable indications of human presence. With its compact size and versatile Features, this sensor is suitable for various applications in smart homes, hotels, garages, buildings, and safety systems. Features: Accurate Detection: Equipped with 24G millimeter wave radars, this sensor can precisely detect human movement and breathing, ensuring reliable indications of human presence. Smooth Connectivity: Connect the sensor to your phone APP via WiFi or ZigBee(ZigBee version requires a gateway, not included). Enjoys a detection radius of 1.5-6m and adjustable sensitivity levels for enhanced convenience. Smart Home Integration: Perfectly integrate into your smart home system, such as pairing with intelligent lighting systems. When someone enters the room, the lights automatically turn on and turn off when they leave, bringing convenience to your daily life. Compact and Versatile: With its small and space-saving design, the sensor can be placed on any flat surface or mounted on a wall. The USB plug-and-play feature ensures easy and hassle-free installations. Wide Application: This sensor is perfect for various fields, including home automation, hotels, garages, buildings, and safety systems. It fulfills the need for detecting human presence and movement, making it perfect for both safety and automation requirements. Specifications: Color: White Material: ABS Communication Method: ZigBee / WiFi(optional) Radars Transmission Frequency: 24GHz-24.25GHz Radars Detection Distance: 1.5-6m Radars Detection Angle: 120 Working Temperature: -10~50 Working Humidity: Max. 95%RH Item Size: 60 * 60 * 15mm/ 2.4 * 2.4 * 0.6in Item Weight: 28g/ 1.0oz Package Size: 70 * 70 * 33mm/ 2.8 * 2.8 * 1.3in Package Weight: 60g/ 2.1oz Packing List: 1 * Human Presence Sensor 1 * USB Cable 1 * User's Manual