This 1-Pack Of Smart Wi-Fi Motion Sensor Light Switches Is Compatible With Alexa ?Wi-Fi Motion Sensor Light Switch?Automatically turn on/off lights based on room PIR occupancy when detecting infrared motion(Note:The sensor keeps staying off if the environment is bright).The adjustable time delay from 15sec--60mins optional.Work with Tuya Smart Smart Life APP. Manage your device with voice commands via Amazon Alexa or Google Assistant. ?Smart Wi-Fi Motion Detector? It's also perfect for home security.When PIR detects humans in motion, your phone will receive an alarm signal,Home Security Alarm make House more safety. ?VERSATILE SETTINGS on App?The Light switch sensor features adjustable settings. Automatic ON/OFF and Manual ON/ OFF operation, Adjustable time delay from 2sec--60mins, Wi-Fi Indicator turn on/off. ?Scene Linkage for Home Automation?Create smart scenes with other smart Wi-Fi devices for whole house linkage, such as when the motion sensor is ON, automatically turn on some other lights for smart lighting. ?Wide- Application?The PIR sensor detects motion with a 120 field of view and the detection distance is 23ft coverage,strong sensitivity. Turn an ordinary switch into motion-sensing hands-free switch. Ideal for laundry rooms, kitchens, entryways, mudrooms, hallways and more. .