Smart PIR SensorOur motion sensor requires no subscription service and requires no hub. Designed to connect to Wi-Fi network, simply download the "smart life/tuya" app on the App Store . In the app, you will receive a notification of any alerts. It's easy for you to keep an eye on the security of your house anytime, anywhere. Instant AlertsWhen it is triggered, such as human motion or movement, an instant notification will be pushed to your smart phone(work with Tuya) .Can achieve real-time monitoring day or night. 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 the next motion. This will avoid the false alarm and also save the battery life. You can choose what you need. Easy InstallationDouble sided self-adhesive tape (included) can be used to fix the sensor. This unconventional ultra-thin PIR motion sensor can be installed anywhere you need. Long StandbyPowered by 3pcs 1.5V batteries, their working time can last for six months.Ultra-long standby time.