3. [Flexible Use] The wall mount can be fixed to the wall or wherever you need it. It's as light as a wireless hub and runs on USB 5V. 2. [Perceived Light Intensity for Smart & Scene Linking] The lighting monitor in Tuya Smart app enables its smart function like smart scene pairing with other smart devices, especially the lights in your house so that they automatically turn ON/OFF as the brightness; Besides, you can intelligently link the sensor to other smart home devices for home automation. 1. [Functional Intelligent Presence Sensor] Featured as presence detection, static, mini human movement and human movement to detect the presence or absence of people in the area, even to detect static state such as staff sleeping accurately with the featured mmWave radar detection. 4. [Advanced Design with Multiple Settings] Set the sensitivity from 1 to 6 according to your own needs, along with a minimum detection range of 0.01m and a maximum of 9.5m for flexible detection demand. Meanwhile, it is designed with a standby time set as 0-1500s and detection latency set at 0-10s to avoid irrelevant annoying movements and reduce the rate of false alarms. 5. [ZigBee Hub as Control Center] Tuya ZigBee Gateway (not included) is required for this ZigBee presence sensor, which functions as a hub for all Tuya ZigBee smart devices with extremely stable signal and a very good need for whole house intelligence., Weight: 0.220462262 Pounds, Manufacturer: FIGGRITID