The pyroelectric infrared sensor is adopted, which has the advantages of high sensitivity and anti-interference.<br> The 120 super large detection angle can sense the movement of the human body within 5 meters, and quietly record every passing moment.<br> Install multiple sensors at different locations at the door, kitchen, bedroom, etc. at the same time. When you open the door, the living room light will automatically turn on; when you leave the kitchen, the kitchen socket will automatically cut off; when you wake up at night, the desk lamp will automatically turn on... through linkage Other smart home devices, wherever you go, smart life can follow.<br> When the device perceives human movement within the detection range, it will transmit the information to the cloud through the gateway, and you can receive real-time alarm pushes on the App. wherever you are, and you will be in control of the movement.<br> The product is the size of a -pong ball. Comes with a 360-rotating mounting base, which can be placed horizontally, upside down and vertically, and choose the appropriate installation method and location according to the different home environment.<br> <br> This product needs to be used with tuya ZigBee3.0 gateway!<br> It adopts low-power passive sensing method, installs a button battery, it can be used continuously for more than 365 days. You can also set low-battery information push through the App to remind you to replace the battery in time.<br> Due to different batches, there may be differences in product appearance and printed text, which will not affect use<br> Colour:White<br> Material:plastic<br> <br> Package Contents:<br> 10 x PIR Motion Sensor<br> <br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.