Description: This is a motion sensor which can work dependently without hub , can accurately detect moveing in the room , there are two mins detect model and four mins detect model , for smart life  , Also, it can associate 2 device sot work to creat your own scene and shart your devices to others directly Fast Instant Alerts: When it is triggered, such as human motion or movement, an instant notification will be reported to your smart phone within 3-10s depends on internet speed. The built-in redial function allow sensor auto connect to the network after resetting the wifi router 24/7 : smart sensor offers round the clock of your home. Use in a room or anywhere you want to notified when motion or movement. every activity and send to your Android phone. It's easy for you to keep an eye on the security of your house anytime Two Modes Switch : There are two mode can be selected for this sensor. 2 and 4 minutes mode. The sensor will detect the first movement instantly and then wait for 2 or 4 minutes before detecting motion. This will avoid the false alarm and also save the battery life. You can choose what you need DIY: Easy for installation. Double sided self-adhesive tape (included) can be used to fix the sensor Specification: Battery: AAA 1.5V x 3pcs (Not included) Standby current:20uA Standby time;1 years Standard Mode:five month (15 times/day) eco;five month (15 times/day) Sensitive angle: 120° Size:65mm x 65mm x 30mm Package Includes: 1x motion (AAA 1.5V x 3pcs Battery not Included ) 1x User Manual 1x Double sided self-adhesive tape(2 pack)