1. Newly designed 3-in-1 sensor, human infrared sensor; light sensor, intelligent scene switch.2. Human motion detector, APP notification to your safety.3. Smart scene switch function, can control the smart light in your home.4. Intelligent linkage control, this sensor can be connected to other smart devices to make your life more convenient.Product name :3 in 1 SensoDimensions:51x51x21mmWeight: 18.5gBattery(WiFi Version):AAA*2(not include)Working temperature: 5-60Working humidity:20%-80%RHWireless protocol: 2.4GHz Wi-FiWorking voltage:DC 3VColour:WhiteMaterial:plasticPackage Contents:1 x PIR Motion SensorOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.